to cleanse himself of his anger and hatred and to redeem himself.
Did he not asks to meet with Jewish leaders to do just that?
He needs counseling.
He may seek forgiveness for his remarks but no one can realistically "forgive" him for his visceral hatred of Jews if he merely seeks to keep it better repressed from now on.
Gibson must confront his own demons on hating Jews (and disrespecting women and non-Hollywood star little people too) with professional help ... if he sincerely wishes to understand his emotions and purge himself of his prejudice, arrogance, and anger.