[musername]

Legality should follow morality. You argued that it is immoral to prohibit drugs, if that fosters an underground market, because that market is likely violent and otherwise criminal. I say, drug abuse leads to violent or otherwise illegal, or at least immoral behaviour so it's only right to put them users into one bag with hardened criminals. The only market directly fostered by criminalization is the drug market. There are problems like quality control and stigmatization, sure ...