Most Trump supporters just hate Hillary Clinton - and that's the reason why they're voting for him. Most red avatars here would vote for a Democratic version of Donald Trump if he ran against someone like Scott Walker.
This is something that is important to mention. I am not thrilled with Trump and I am still undecided between him and Gary Johnson, but there is a major undercurrent of his base that is #NeverHillary. These people are looking at Trump mainly because he is not Clinton. Tarring these people as all the terrible -ists that you can think of is not going to win them over, but make them dig in deeper.