I've always been torn over this subject as well.
I still am.
I detest how stupid pot makes people. I hurt for the addicts of the harder stuff. I cringe at the thought of our decadent and lazy society having unlimited access to liquefy their minds.
Yet, I see little point in continuing to pour such valuable resources into trying to stop something that's flooding in from so many sources. Imagine those resources being applied the crimes where the individual is hurting someone other than themself?
I suppose that I would not be opposed to legalizing all of it and letting the chips fall where they may.