I saw no humor in this joke. As a recovering alcoholic and AA member I can still judge this objectively: It simply isnt clever, I could write funnier lines, if I wished.
This kind of joke isn't really a joke. It's an alcoholic's version of a joke. It's disgusting, and not funny. It may be if indeed everybody was an alcoholic, but most people aren't. Too many people are, but most people aren't. I can't stand "jokes" or statements that imply that EVERYBODY is a certain way, when in fact most people in the world are NOT that way. I know I sound uptight, but I'm not. I have an extremely strong sense of humor, but sometimes things get to me.