thanks for all of the replies guys. I know I am not alone, but like many of you it pisses me off to think about it.
I know he wont change, and that is the worst part. He is dragging my parents down too, more so emotionally than financially, but they aren't exactly swimming in money and have very little retirement and are giving him money to help out which sets them back from their goals. He just got a job with my other brother, so I will give him some time to get things back in order.
If he screws this job up I am going to have a big decision to make on if I want to risk our relationship to say what needs to be said.