Hi there,
I'm so sorry to hear that. Yes, it seems like some of them will just continue to go on drinking no matter what. I am sure my ex is drinking still and I'm thankful I never married him or even moved in with him. He is more of a functional type alcoholic and actually seems to pride himself on his boozehound personality.
He doesn't have me to enable him but he has plenty of friends who do that anyway. Even when I told the friends that he was headed into a downward spiral they kept getting him drunk. Misery loves company, I guess. Whatever, it doesn't matter anymore. Sometimes you just get so sick of dealing with the nonsense.