I simplified reality for the sake of argument. It goes without saying that there are people who have religious or moralic concerns, there also people who have actual good reasons to avoid alcoholic drinks (e.g. if you or someone in your family had problems with alcohol in the past).

I think a realistic stance towards drugs like alcohol or MDMA demands that we do not ignore the problems these drugs cause, but also see with how many users they don't cause any problem at all.