What my Trump interpreter came up with:
Media bias! (F*** you for telling the truth).
Rigged elections! (that won me the Repub Primaries)
NAFTA! (that helped me make millions of $$$)
Make America Great Again! (you know, like when Bush and Cheney ran us into the dirt)
LIAR! (and nobody, but NOBODY can beat me at that)
Benghazi! (I dunno, whatever.......)
Voter Fraud! (and don't ask me to prove it either)
I don't think what you describe is a binary situation, moonbeam. I'll grant that it certainly grades off in that direction. I'll also grant that the Repub leadership has pushed people in that direction every chance they got. Now they can't control it. WTF were they thinking?
I can easily take the point of view that what's happened to the Repub Party became inevitable the moment they decided to exploit the consequences of the passage of Civil Rights Act to their advantage.
That strategy built a wall and moat around their party that had absolutely no features for building bridges up to it.
They went for the short term gain and didn't care or didn't have the foresight to prevent the results of which put the party right where it is today.
Without the ability to be inclusive of those that fell outside of the political culture they were promoting, the GOP was forced to turn inward to keep what they had. Ergo, the party severely limited itself in their ability to grow in numbers and to keep up with the changes in attitudes that comes with the natural evolution of the society and culture we see around us at the present time.
The party became stagnant. It became archaic. It became stuck in a time period along with the attitudes that pervaded that era of which "mysteriously" coincided with the time they unleashed their southern strategy.
Critically so, they hadn't taken into account the nascent shift in demographics the nation was in at the time and how the growing demographic shift is anathema to the strategy they hatched back in the early sixties, of which the GOP is still stuck with in this very different day and age.
I really can't see a way around the conundrum they put themselves in, short of creating some kind of national emergency of some sort that works to their advantage.