Medical marijuana is a distraction here. Both of us believe that drug prohibition fosters crime. Both of us favor legalizing the medicinal use of marijuana. But legalizing medical pot wouldn’t do much to reduce crime. Voters don’t have to support prohibition “in its current form” for their policy preferences to generate a black market. They merely have to support prohibition in general. As the vast majority of them do, for reasons that do not strike me as ignoble or idiotic although they are probably mistaken.