Doesn't even prove that. Look at how the American secular Jews attacked his movie "the Passion," consider (subsequently) what he might have encountered earlier that evening (and forgotten) out&about in a local frequented by (secular, liberal, and highly anti-Gibson) Jews... you've got no proof here. Evidence, certainly, but proof? No.
He's made a decent apology. (Did we ever get the equivalent from Clinton? I do not think so.) But this is politics and not polite society; the Left will never let go of this.
I'm rather curious about the Holocaust show that Gibson was working on. I'm having a lot of trouble believing they were funding an anti Semitic Holocaust flick.