SACRAMENTO — After the governor of Texas ordered state businesses to analyze mother and father for little one abuse if they supply sure medical therapies to their transgender kids, California lawmakers proposed a regulation making the state a refuge for transgender youths and their households.

When Idaho proposed a ban on abortions that empowers family to sue anybody who helps terminate a being pregnant after six weeks, close by Oregon accredited $15 million to assist cowl the abortion bills of sufferers from out-of-state.

As Republican activists aggressively pursue conservative social insurance policies in state legislatures throughout the nation, liberal states are taking defensive actions. Spurred by a U.S. Supreme Courtroom that’s anticipated to quickly upend an array of longstanding rights, together with the constitutional proper to abortion, left-leaning lawmakers from Washington to Vermont have begun to develop entry to abortion, bolster voting rights and denounce legal guidelines in conservative states focusing on L.G.B.T.Q. minors.

The flurry of motion, significantly within the West, is intensifying already marked variations between life in liberal- and conservative-led components of the nation. And it’s an indication of the implications when state governments are managed more and more by single events. Management of legislative chambers is break up between events now in two states — Minnesota and Virginia — in contrast with 15 states 30 years in the past.

“We’re additional and additional polarizing and fragmenting, in order that blue states and purple states have gotten not solely slightly completely different however radically completely different,” stated Jon Michaels, a regulation professor who research authorities on the College of California, Los Angeles.

People have been sorting into opposing partisan camps for at the very least a technology, selecting an increasing number of to stay amongst like-minded neighbors, whereas legislatures, by gerrymandering, are reinforcing their states’ political identities by solidifying one-party rule.

“As states turn out to be extra purple or blue, it’s politically simpler for them to cross laws,” stated Ryan D. Enos, a Harvard political scientist who research partisan segregation. “Does that create a suggestions loop the place extra sorting occurs? That’s the half we don’t know but.”

With some 30 legislatures in Republican arms, conservative lawmakers, working in lots of circumstances with shared legislative language, have begun to enact a tsunami of restrictions that for years have been blocked by Democrats and reasonable Republicans on the federal degree. A current wave of anti-abortion payments, as an example, has been the biggest for the reason that landmark 1973 choice in Roe v. Wade.

Related strikes have not too long ago been geared toward L.G.B.T.Q. protections and voting rights. In Florida and Texas, groups of “election police” have been created to crack down on the uncommon crime of voter fraud, fallout from former President Donald J. Trump’s specious claims after he misplaced the 2020 presidential election.

Carrying hid weapons and not using a allow is now authorized in almost half of the nation. “Bounty” legal guidelines — enforced not by governments, which might be sued in federal court docket, however by rewards to non-public residents for submitting lawsuits — have proliferated on points from classroom speech to vaccination for the reason that U.S. Supreme Courtroom declined to strike down the authorized tactic in Texas.

The strikes, in an election 12 months, have raised questions concerning the extent to which they’re performative, versus substantial. Some Republican payments are daring at first look however vaguely worded. Some seem designed largely to energise base voters.

Many, nevertheless, ship a robust cultural message. And divisions will widen additional, stated Peverill Squire, an professional on state legislatures on the College of Missouri, if the Supreme Courtroom arms extra energy over to the states on points like abortion and voting, because it did when it stated in 2019 that partisan gerrymandering was past federal jurisdiction.

Some authorized analysts additionally say the anticipated rollback of abortion rights might throw a bunch of different privateness rights into state-level turmoil, from contraception to well being care. In the meantime, entrenched partisanship, which has already hobbled federal choice making, might block makes an attempt to impose sturdy nationwide requirements in Congress.

“We’re doubtlessly getting into a brand new period of state-centered policymaking,” stated Karthick Ramakrishnan, a professor of public coverage and political science on the College of California, Riverside. “We could also be heading right into a future the place you might have conservative states and progressive states deciding they’re higher off pushing their very own visions of what authorities needs to be.”

In current weeks, a number of states together with Colorado and Vermont have moved to codify a proper to abortion. Extra — Maryland and Washington, for instance — have expanded entry or authorized safety in anticipation of out-of-state sufferers.

However no state has been as aggressive as California in shoring up options to the Republican laws.

One bundle of pending California payments would develop entry to California abortions and shield abortion suppliers from out-of-state authorized motion. One other proposal would thwart enforcement of out-of-state court docket judgments eradicating kids from the custody of oldsters who get them gender-affirming well being providers.

One more would implement a ban on ghost weapons and assault weapons with a California model of Texas’ current six-week ban on abortion, that includes $10,000 bounties to encourage lawsuits from personal residents towards anybody who sells, distributes or manufactures these varieties of firearms.

In a “State of the State” deal with final month, Gov. Gavin Newsom took greater than a half-dozen swipes at Florida and Texas, evaluating California’s expanded sick depart, household depart and Medicaid protection throughout the pandemic with the upper Covid-19 loss of life charges within the two Republican-led states, and alluding to states “the place they’re banning books” and “the place you’ll be able to sue your historical past instructor for instructing historical past.”

After Disney World workers protested the company’s preliminary reluctance to sentence the Florida invoice that opponents name “Don’t Say Homosexual,” Mr. Newsom advised Disney cancel the relocation of some 2,000 West Coast positions to a brand new Florida campus, saying on Twitter that “the door is open to deliver these jobs again to California — the state that truly represents the values of your employees.”

Dan Schnur, a former Republican strategist who teaches political science now on the College of Southern California and the College of California, Berkeley, stated that with out sturdy Republican opposition, Mr. Newsom has been utilizing the governors of Texas and Florida as straw males.

“It’s an efficient method of strengthening himself at house and elevating his title in Democratic presidential conversations,” Mr. Schnur stated.

Conservatives in and outdoors California have criticized the governor for stoking division.

A spokeswoman for Gov. Ron DeSantis of Florida, who’s a Republican presidential contender, famous in an electronic mail that Disneyland was closed thrice longer than Disney World throughout the pandemic, and that lots of of hundreds of People moved to Florida between April 2020 and July 2021 whereas lots of of hundreds left California. Mr. Newsom, she wrote, “is doing a greater job as a U-Haul salesman.”

“Politicians in California would not have veto energy over laws handed in Florida,” the spokeswoman, Christina Pushaw, added. “Gov. Newsom ought to deal with fixing the issues in his personal state.”

The workplace of Gov. Greg Abbott of Texas — who, in 2018, ran on the slogan “Don’t California My Texas” — didn’t reply to emails and calls requesting remark.

In an interview, Mr. Newsom famous that California has been grappling for many years with the cultural and demographic modifications which can be solely now hitting different components of the nation, together with early battles over such points as homosexual rights and immigration. “I’m very involved broadly about what’s taking place and whether or not or not it’s absolutely understood by the bulk, not simply of the American folks however folks inside my very own social gathering,” he stated.

“We’re not going to take a seat again and neutrally watch the progress of the twentieth century get erased,” he added, decrying the “zest for demonization” and an “anti-democratic” tilt in current insurance policies to limit voting and L.G.B.T.Q. protections.

“If you happen to say nothing, you’re complicit,” Mr. Newsom stated. “You must take these guys on and push again.”

California’s stance has broad implications. Though U.S. census figures confirmed stalled development within the state in 2020, its inhabitants of almost 40 million is the nation’s largest, encompassing one in 9 U.S. residents.

“In a world wherein the federal authorities has abdicated a few of its core duty, states like California have to determine what their tasks are,” stated Mr. Michaels, the U.C.L.A. professor. “The exhausting query is: The place does it finish?”

For instance, he famous, the fallout might imply that federal rights that generations have taken without any consideration might turn out to be obtainable solely to those that can afford to uproot their lives and transfer to the states that assure them.

“It’s simple for Governor Newsom to inform struggling Alabamians, ‘I really feel your ache,’ however then what? ‘Come hire a studio condo in San Francisco for $4,000 a month?’”

Violet Augustine, 37, an artist, artwork instructor and single mother or father in Dallas, worries concerning the limits of interstate refuge. For months, she stated, she thought of transferring away from Texas together with her transgender daughter, a kindergartner, to a state the place she doesn’t always concern for his or her security. When Mr. Abbott and Texas’ lawyer basic directed the state to analyze mother and father with transgender kids for potential little one abuse, her plan solidified.

An attraction on GoFundMe has raised some $23,000, and he or she not too long ago made a go to to Los Angeles, staying at a lodge within the coronary heart of town’s Koreatown and assembly with leaders of a neighborhood group that describes itself as “radically inclusive” of L.G.B.T.Q. households.

“Town itself simply felt like a secure haven,” Ms. Augustine stated. However, she added, her $60,000 wage, which permits her to hire a home in Texas, would scarcely cowl a California condo: “We’re going to need to downsize.”

Michael Wines contributed reporting.