Look, I grew up in a cult too (the Baptist flavor). I also grew out of it mostly unscathed. He's a grown-ass man that still believes these truly heinous things. He has not grown as person. Or addressed his ignorance. And he's never retracted or apologized for his hateful views.
Which... it's his right. He can be an asshole. But people should be informed and, like I said, he should be shunned and shamed.