To answer the thread derailers: if, as is the case with Ethan and JonTron, you had a very good friend who you were deeply indebted to - because he helped you get a job, supported you when you were depressed, saved your life, whatever - and he came out as a racist, what would you do? I don't know about you, but I sure as shit don't know what I would do.
I'll tell you what I wouldn't do though: I wouldn't just crucify him publicly, because I'm not a fucking monster/machine. My mind doesn't go "If "questionable belief" is "yes", then "publicly shame friend and sever all ties". I'd consider it a private matter. And no, that wouldn't mean I'm fine with my friend's beliefs, let alone agree with them.
Human beings and relationships are complicated. Get a grip.