I don't want to go full on "Mel Gibson is racist and hates Jews", because a lot of it could just be drunk parroting of his father. But it is pretty bad and he obviously has an anger issue. My dad has said some ridiculously hardcore racist shit and my brother, who is 100% not a racist, has parroted it while drunk just cause we've had to listen to it constantly.
He's a grown ass man, and it goes back decades, and it's not just about Jews either. Remember, this is the the same dude that said, "if u don't stop wearing those tight pants you are going to get raped by a pack of nI**ers and it will be your fault"... to his ex, before sending her on her way to get dental work... Allegedly.
He's said some ridiculously homophobic things in the past as well, and considering how he handled Prince Edward in Braveheart, making him extremely effeminate, cowardly, and useless, only to then have his lover thrown out a damn window for comedic effect, I'm not the least bit shocked.
I'm fully convinced he's a scumbag, and that perhaps Hollywood should continue giving these jobs to people that don't have an obscene amount of baggage, and you know, actually deserve these incredible opportunities.