There's no need to... those votes and support are guaranteed. They just need someone who appeals to independents, blue collar liberals, and doesnt offend minorities and gays.It's the changing of the times for sure. America has become more diverse; not just on race, but sexuality/gender, religions, etc. It's almost like those quick payday loans, the bill came due, but instead of paying the bill they took out a loan with a high interest rate; The Tea Party.
Instead of paying back the loan, they instead built up debt. That debt is morality, and this is the end stage of it.
Sure Donald Trump loses, but they big question is, who in the Republicans can unite the fringe GOP and the far-right? Near impossible.
...being "the guy" on the right is much easier than it is on the left.