I see a gradual shift, which is usually how these things occur. The hokey Reaganites won't be banished or anything, they'll just have less and less influence as time goes on and they literally fall away. These people are a shrinking share of the population.

Younger Millennials and Zoomers aren't living that life, in large part because they haven't had the same economic opportunities. Unless you think the USA is going to be on the rebound, the Megachurch class will wither away pretty soon. If Republicans are smart, they're building a contingency plan with the young fringe types.