I think the vast majority of his current supporters are self-hating and want to make others feel as badly about life as they do - without realizing it, of course.
I could see someone coming to resent him while still holding the Republican “deplorables” identity. He is functionally above the law. Still ripping people off. Still pretending to be something he’s not and will never be. And they still have crappy little lives.
But who knows? I’m just a rando.
We’ll never know the intent or reasons of the first shooter. It’ll be interesting once the second guy’s story comes out.