I think that's oversimplified.
Exactly.
1. Trump pursues the "Christian Right, successfully"
2. In the days of "Reagan democrats," they weren't "Christian Right" but instead many were traditional blue collar union types, national security types, etc.
3. The idea for Republicans to not seek democrat voters, is simply brain dead, politically ignorant.
4. The Kanye-Candace-Blexit movement, the "walk-away movement, seek to add democrat voters, a rational sane goal, in a politically intelligent arena.