The Republicans are bigger scum.
They have no intention of following through with their rhetoric. They just use it as a vehicle to get elected and put their kids through college.
They ostensibly hate Trump because he isn’t one of the political class. But they hate the prospect of him winning because he puts them on the spot to vote for all sorts of things they promised but that they’d never imagine they’d have to actually enact.
They can’t defend their records. They are trying to stand on principle against Mr Trump, but the fact is if they were truly principled they would have stood up to Obama and Dubya many times over. They didn’t. Principle is one of the last refuges of a scoundrel.