Well, not to be harsh, but you really can't have it both ways. You can't come and ask for advice and then say we are being rude or unsupportive when we give you our best advice. Please remember you are in a forum full of people who have dealt with exactly what you are dealing with, so it's not like we're just being flippant with our responses.
It is always your choice whether you stay or leave. If you choose to stay, there are going to be times when you are unhappy with your situation. Alcoholism is progressive. It never gets better if the person does not stop drinking. I hope he quits, I really do. But there is a good chance that he won't. If you want to stick with him through that, then do so. But don't ever say we didn't warn you. Good luck.