Prohibition wasn't voluntary though. I think there's gonna be a sobriety wave soon(like in 10 years or something), dry January is a thing, and people are starting to take breaks from drinking. Although it might be from more of a "I don't need the excess calories" rather than a "alcohol is bad for you", ibknow personally when I'm out of shape my desire to drink goes down massively, and if I do it ends up being something harder like rum or whiskey(of which I'll probably dump half of it anyway).

I dont necessarily think suger is the issue in and of itself, I think it's just absolutely everything about modern life subconsciously forces you to eat to healthily if you're not specifically looking out at all times