I don't think there is anything really wrong about demonizing marijuana. I happen to agree with the hardcore mindset that alcohol tobacco and all that crap is just stupid vice that kills off humans who abuse them. Maybe it's just nature's way of 'pruning' humanity so to speak. Sounds harsh to some probably, but that's how it is for me. There's nothing necessarily bad about that mindset. It's purely logical. That said, Kara no Kyokai's focus wasn't on that anyway, since it was a gateway drug to the harder stuff and ultimately Lio's strange goal of making people lose their sanity competely.
That said, wow... I was really annoyed with Mikiya,