I think these "conservatives" are so used bitching, moaning, and complaining about everything over the past 8 years they don't know how to positively promote a candidate. So when talking about Trump, they can't do anything but to criticize. Their own antics are now biting themselves and their party in the ass. Does anybody remember the last time they heard anything positive or constructive that didn't include the word Regan in it coming from a conservative commentators mouth?
The Republican party is divided in two. We have the conservative constitutional Tea Party types, and we have the establishment types.
Trump is a thorn because he is neither conservative nor establishment, so there are people from both sides that are unhappy.
I didn't vote for Trump either in the primaries, but I accept him as my candidate because the majority voted for him. It's my hope as the elections gets nearer, the others will do the same.