When we are drunk, we may say what we feel. What we feel may have precious little to do with reality. It is what we do that is important.
The only thing that I would be certain in saying is that Mel has issues with Jews. I have no idea what those issues are, or how they affect his thinking and behaving.
The other thing I can safely say, is that he has a problem with alcohol.
His father is a raving lunatic anti Semite.
Some may charge that my opinion is colored by by religion, but I don't believe a child grows up psychologically healthy in the home of a raving lunatic anti Semite.
Maybe some can overcome that disadvantage. Not here obviously.