Er, I agree it's incredibly old, but also has been treated as societal ill and subject to regulation for its entire history.
Wanting to control the non-violent actions of others is also a social ill. Just one most haven’t woken up to yet.
Should cannabis and other currently illegal substances remain as such?
I mean, I don't think we should legalize Fentanyl.
There's degrees of harmfulness. Weed is on the mild side along with alcohol (possibly even less harmful than alcohol).
You can regulate the supply of a substance. Gambling is a human behavior. It's a normal human behavior. I don't understand the pearl clutching around gambling honestly.
They should be extremely tightly regulated, which is all anyone is asking for here as well.