Look, the man is an awful person, but don't give him THAT much credit. Goldwater, Nixon, Reagan, Lee Atwater and anyone involved in the southern strategy was major parts of it. McConnell, "The Freedom Caucus", and "Tea Party" were major parts of it. The Koch Brothers with the heritage foundation is a major part.
And this is the short list. I didn't go into the evengelicals, AM conservative pundits, Rupert Murdoch and so much more.
That's what I keep saying is the greatest failure is the traitor leaders got to skip off.