There is nothing “psychopathic” about those three expectations. If someone under the influence of a drug does something to another, that is premeditated, as that person chose to throw out self-control. It is no different than a person going into a crowded mall, placing on a blindfold, and then randomly firing a gun. If they hit someone, how can they claim it wasn't “premeditated?”
If weed or other drugs that chase your capacity to control yourself doesn't make you do things that hurt others, then you won't have to worry about the torture. But if it did, you would.
Let's not be “libertines,” please.
Are drunk drivers that hit and kill an innocent driver charged with premeditated murder?
Is alcohol illegal because all unintended consequences of that legal product cannot be insured against?
You don’t have to answer either of those, because anyone with a brain already knows the answers to both.
Let’s not play the double standard game please.