Perhaps alcoholism IS a disease, but if so, it is a self-induced disease which makes it unusual.
I think it is important to distinguish between a drunk and an alcoholic. A drunk has a behavior problem and an alcoholic has an addiction. A drunk can quit drinking without having withdrawl symptoms.
Why is this important? Do you think there are levels of withdrawal symptoms?
I personally "tried" to quit or control my drinking at least 100 times using various methods, none successful. I succeeded when I made the decision to stop "trying" and to "do" it. I succeeeded (for now). I know I can't drink again and my intention is that I won't.
Am I a drunk or an alcoholic? Does it matter?
I think that's part of it.