Soooo ... tobacco has always been legal, and is heavily taxed and regulated; alcohol has usually been legal and is heavily taxed and regulated.  In both cases, the justification is that prohibition doesn't work except to support organized crime, so it's better to keep the products legal and spend some (not enough) of the tax revenue on education, treatment and harm reduction.  Are you saying that the federal govt's overdue plan to give up on totally ineffective marijuana prohibition and tax and regulate it instead is misguided?  Should we prohibit tobacco and alcohol too?