People seems to think that Trump and Republican wants to jail, and deport every immigrants. They just want a strict border and deport illegal aliens. That's something most people can relate to
Dem on the other hand selling the "let's open the border for everyone and let them all in"
Sometimes people are forced to pick the lesser of two evil. I believe strongly Trump or republican voters dont fancy full anti abortion, but the other alternatives was a full abortion before pregnancy.
I also believes that if one party could have offered a more balanced approach and rational policy (e.g. no abortion beyond the 5th months or stricter border patrol but a more open legal immigrations) would have picked more vote. Not everyone is anti abortionist at all cost and not everyone is abortionist at all cost. They just dont have the middle option