OK, go ahead. Legalize marijuana, then tax the hell out of it, just like alcohol and tobacco.
Then use the revenue generated to SPECIFICALLY apply it to the damage and human wreckage left by marijuana use.
That ought to include at least a quarter of the graduates of the liberal arts degree programs issued by the University of Wisconsin-Madison. Those who graduated in the more science-oriented programs do not have such a broad problem with hallucinogenic substances.
That way, the habitual users of marijuana are simply prepaying on their own rehabilitation and treatment problems in future years.
Anyone that wants to do it is already doing it. So I don’t think there is going to be a spike in pot use.