There's a difference between being a warrior on issues of religion and the family (what I call social conservatism) vs being a warrior on issues of national identity (what I call cultural conservatism). People who are primarily social conservatives by my definition tend to be less right wing on racial issues than people who primarily cultural conservatives are. Example: George W. Bush.
Trump himself is decidedly the latter. He decided to take up enough social conservative issues like abortion and SCOTUS in order to win both blocs of voters. I expect the GOP to be primarily cultural conservative going forward while throwing enough bones to social conservatives (who won't vote for progressives) to keep them in the fold.
Yeah, I think this is correct. It also seems like most religious conservative leaders have given up on trying to reclaim the party and are settling for some judges.
This works until the legality of abortion and the legal status of homosexuality become legitimate political issues again. Maybe the socons score a "W" and move on?
I really don't think that abortion or even gay marriage will be "settled" the same way segregation and integration was. My guess is that they will become "local" issues so long as they number of jurisdictions that are permissive and prohibitive remain relatively equal?