Thanks RomanSunburn, that was actually a very thoughtful response and it pointed out things I didn't really consider. The problem with my family is that no one will make the move to even tell him that his behaviour is wrong, they all just leave it to "oh that's the way he is, he's like his dad" which is frustrating. He thinks his treatment of women, his abuse of his family and his spiral of addiction are perfectly normal. But its not.

Should I just sit back and watch him cripple other's lives?