All racists might be Trump supporters, but not all Truimp supporters are racists. They aren't racists just because Trump is. They aren't sexist just because
The blue collar white men you're talking about haven't been alive throughout the entire history of the nation. So no, it's crazy to lay the blame for racism at the feet of any of them.
I'm a black man. Believe me, I care deeply about fighting racism. But if we're going to play the game of anybody who is part of any group, that any point in history, had anythiing to do with racism, is racist, I'll bet every penny I own that by that definition you're racist too.