Comment by Sweepi

iirc alcohol is the drug with the highest amount of 3rd party harm due to the high number of people beating their spouse, children and sometimes random strangers under the influence. (+ 3rd party property, car crashes, ...) Keep in mind this was evaluated with current laws, which bans most kinds of indoor-smoking.

Still a good idea to ban cigarettes and force people to consume their nicotine in healthier ways.