i don't find these comparable, at least not in Europe, drink driving cause very few deaths in car accidents statistics which are already drastically better than they have been and pretty much everyone adult drinks at least occasionally, I seriously doubt pretty much every adult in US shoot gun occasionally let alone own it
but I don't see problem with ban on alcohol even if it would save only few people killed by drunk drivers, because it would decrease cases of domestic violence and violence in general and most importantly for me we would get completely rid off those hordes of drunk Britons roaming our cities, also no drunks (homeless) in streets and cleaner public transport and streets would be nice, so it sounds like great trade off, not because of drunk drivers deaths which are really rare to ban alcohol from majority of adult population, but because of other factors,
so great idea and I say this as someone who was basically alcoholic for a year in my first job in China where we drink spirit (baiju) during lunch break and then after work, then after switching jobs basically stopped drinking completely and now back in Europe me and wife consume maybe 1-2 bottles of wine per month so it's not like we are abstainers that it would not affect me, although i think charging like 500-1000% tax on alcohol and raising agree limit to 30-40 years and strictly enforcing it would seem more realistic regarding voters than complete ban, after all those people with alcohol issues started usually very young