No, the GOPe wanted a professional politician. They would have settled for Cruz, which is saying a lot. Trump can get them if they think he will win. Even the GOPe wants to win again. Trump has come a very long way for a political amateur. It is not significant unless he defeats Clinton.
I don’t see it that way.
They knew they couldn’t stop him from the nomination, so they just decided to go ahead and abandon him in the General. They can live with Hillary.