I have brought this up before here or somewhere, I don't know, but the majority of my wife's family is stupid conservative and always has been. I have known them for 30 years at this point. They have always acted and talked, just quietly, like Trump. They have always felt this way -- but they will be really nice to your face. I haven't seen them do it yet, but Trump obviously has given many the reason to say and do those quiet parts out loud. It's probably why he is so darn popular with Republicans in general because he let them finally be themselves.
There may be some who voted on policy or whatever, but I don't see how you separate his supporters from the bad. You support him and you are supporting bad things. Period.
I also think that many will realize this, especially if it was more support on policy (whatever that is) or principal or just because GOP!, that will eventually go, um, this isn't good. But most of the things I have seen still support. Like real people on real news items or social posts. Lots of what laws are being broken or look at all the fraud! So we are far from the mash supporter really questioning anything.