You're assuming that most want to be rehabilitated...they don't. There are lots of programs and help available right now. These are people who have alienated their own families for a mad desire for pleasure from of a bottle, a needle, or a pipe. Their own families were their first victims and when they're done with them they turn on naïve people who think enabling them will help. It doesn't. You only make them worse and take yourself down with them. Most of us don't want to be dragged down by this insanity.  If you are saying you want to round them up and force them into a facility where they will stay until they clean up, that has some merit. Problem is, we have a Constitution and Bill of Rights so...I wouldn't want to go there.