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.
The last election confirmed everything that liberals have been saying about Christian fundamentalists
for decades. They do not care about Jesus or following his commandments or getting "right with God" or whatever. What they want is power. Donald Trump is the most antithetical thing to Jesus Christ to run for the presidency in the modern era. They voted in lockstep for him. All the leaders of the evangelical community (Tony Perkins, Franklin Graham, Jerry Falwell, Jr., etc.) came out and rallied around him as 'their guy,' going as far to call him a
"baby Christian" because he said the right things about gays and abortion.
It's a shame that the same grace wasn't extended to Barack Obama every time his faith was called into question from the time he ran for president.