Smoke in itself, whatever it may be, tobacco or cannabis, is bad for your health. Thats probably what you meant. And its true.
Drinking goes beyond just being directly bad for your health, like smoking does. Im pretty sure more people have died while drunk because they did something stupid rather than because the alcohol destroyed their *insert whatever organ you want here*.

But you just proved my point about things that dont do anything for society. Its not a reason something should be banned. Rape is illegal because its violent, discusting, discriminating and lots of other things, not because it hasnt done anything for society.