...which would be a great demonstration of how Law and Chaos can be controversial.
Having had a family member go through alcoholism and get out the other side, yeah, being drunk all the time (note that I said the archetype, not the style; the former almost always actually DOES have to drink alcohol to use their powers, the latter simply uses moves which sway like a drunken person) is absolutely a Chaotic thing, and terribly self-destructive.
But there's not really much point in debating it. The fact that we disagree at all--and that both of us find it strange that the other could disagree--is ample demonstration that the thing in question isn't anything like "commonly agreed."