I could easily see the Christian conservatives break off and form a new 3rd party. The new GOP is nothing like the old guard GOP of the 1980s-2000s.
Those "Christians" don't give a damn about their religion. They hate universal healthcare and support the death penalty. How Christian. They overwhelmingly supported Trump because he and those stooges you listed represent what they really want which is a whiter country.
Capital punishment and personal responsibility (as, of course, is compassion) are both in the Bible, but okay.