> Are you genuinely suggesting that cannabis is more harmful than alcohol
If consumed in the same quantity, it might be.
> do people use biological weapons recreationally? That's news to me
Botox is a neurotoxin originally derived from a bacterium. And various pesticides are regulated. Nicotine actually is a naturally occurring pesticide, though these days BigAg companies produce far more potent "Neonicotinoids" for killing insects.