There is no high moral ground to sanctioning drug abuse.
We don’t live in a vacuum.
Your drug abuse severely impacts me, and in particular, vulnerable people around you - in particular children and other dependents.
I know, we can wait until you injure them, then arrest you.
Doesn’t help the victims much.
If I see someone racing towards me with a knife, I can kill him. I don’t have to wait until the knife is in me. Mankind has lived long enough to know what the usual consequences of drug abuse are.
If I see someone using meth every day, I think he should be put away. He will damage someone; it is almost inevitable. To pretend otherwise is stupid.
Does that apply to tobacco and alcohol also?