You can't regulate people that aren't willing to regulate themselves. So you'll never 'win the war on drugs' any more than you can win the war on alcohol.
I feel some element of pity for people, whether by genetics, poor parenting, high school and college exposure, who got hooked on alcohol but I have zero fucks to give for an adult, whether some housewife hooked on Xanax or some mechanic or tradesman or a real estate broker thats hooked on coke or meth.
I had a mechanic buddy thats in his sixties that came over to my house and left it reeking of some burned chemical, either meth or coke, probably meth. That means he was hitting the pipe as he drove up. F-u-c-k him. Trash.
If he had some terminal disease or even a drinking problem, I would be a friend he could call on but I don't want some idiot tweaker around me.