It's one of the more effective ways of lowering consumption. It's not the problem drinkers that cause the worst effect though - it's the casual drinkers that cause the most damage (for example by overestimating themselves and driving). Taxes would still work on most groups, so yes, it definitely counts.
Does this put me in the "Against" category too? I don't care if people drink alcohol in moderation, but I'm in favour of minimum alcohol pricing laws for Kleimanesque reasons. But minimum pricing is unlikely to reduce most groups' alcohol consumption by much, as only the cheapest booze would go up in price.
As Multiheaded added, "Personal is Political" stuff like gender relations, etc also may belong here.