Call it what you want. It happened. I give repub voters kudos for being the first to recognize the repub establishment couldn't care less about them. Bernie voters got it.
Republican voters were misguided in giving up on their establishment. That was done by a misinformation campaign from the extreme right that make them believe insanely stupid things like Islamic terrorism is an existential threat compared to say, loose handgun laws.
The republican establishment has fewer really stupid ass beliefs than the republican base, but of course it's a case of dumb and dumber.