My fault, not Dobbs ,Roe vs. Wade, was a court ruling by a Democrat SCOTUS, there would be no Dobbs decision if the Democrats would've made it law when they had all three branches of government under Obama's 1st term, the Republicans have never supported the ruling,and have worked hard for 50yrs. To change the makeup of SCOTUS,only Congress can make law, only Congress can abolish law.
Roe v Wade was a 7-2 opinion of a court with seven Republicans and two Democrats. Only one Democrat joined the majority opinion - six Republicans joined it.
The Republicans and Democrats pretty equally supported the opinion until the late 1970s. Here's why:
In about 1978, when almost all Southern Evangelicals were still pro-choice, someone in the RNC (I've forgotten his name, as I don't vote Republican) broached the issue of the need to draw more voters. Nixon had successfully drawn the Southern segregationist and racially prejudiced vote for Republicans after the Democrats Party committed to the Civil Rights Act and Voting Rights Act. In the late 1970s, they had to try something else.
Anyway, it was proposed that the RNC commit the party to a partly anti-choice vote, moving away from libertarianism, which at that time was strongly pro-choice, to pick up the blue collar Catholic vote. This stand on abortion - exceptions only for rape, incest, and the life of the woman - could also serve the Southern religious but racially prejudiced vote in the South, where many people wanted free education at religious schools or wanted church founded segregated private schools to be tax free and people to get school vouchers for their kids to go there.
The Republican stand on abortion became an indirect sign for the vouchers thing under Reagan and beyond.
The Moral Majority or whatever the equivalent was back in the day, promised the Republican Party that it would get out the vote for them if they took the anti-abortion stand. This became an ongoing pact between whatever the Christo-political anti-abortion movement was called at the time and the RNC.
I'll give you a link if you want, but this explanation has been provided in very large numbers of articles that back up their claim with much more detail. I still remember an article no longer findable called "God was pro-choice in 1978." For most Evangelicals back then, this title was true.