I think that's a smaller component that you believe. I think the overwhelming majority of GOP supporters look at their pay stubs and tax bill and decide solely based on who is going to let them keep a larger percentage of the gross. Everything else is just rationalization. I guess like you I base this on my experience. I know a lot of solid republican voters, and none is a born againer (although a couple Catholics I'm friends with a solidly anti-abortion, though also solidly rich). The key to reaching the tax set is convincing them that percentages be damned, if they continue to vote GOP they can keep 100% of nothing after Trump ruins our economy. If the GOP got 100% of the only-cares-about-abortion vote and nothing else, they would get 0 electoral votes, 0 senate seats, and probably a few house seats.