Because of the promise of getting a guy like Gorsuch on the Court who will support their views on abortion. The pro life movement has hijacked the idealogical right or the right has hijacked the pro life movement. It's just interesting to me that evangelicals like them will support the ***** grabber. I think a lot of people are single issue voters.
I believe in many cases it's more than a single issue (I can't speak for your neighbors). It's the penumbra versus strict constructionist. One day Trump will be gone, but Gorsuch will be there. That is the nose-holding phenomenen in action.