Another chemical branded as a date rape drug is GHB, but it is also popular as a recreational drug. Again, not something you can say possession of implies some intention to commit rape.
It's also probably a regular event that young people experience blackout for the first time, haven't been taught about blackout, and assume they must have been fed something more sinister than alcohol.
Alcohol is treated much better than its danger would suggest, for cultural reasons (that most people, use it recreationally, and often in high prestige contexts). If you want more restrictions on alcohol, especially restrictions on profiting from it, I'm all on your side. But I think it's a bad argument to be nicer to importers of novel drug analogs.