if you read the history of prohibition, you see the same thing has happened with marijuana. legalize it, prostitution and any other prohibited product or activity. regulate it and tax it. the money under the table to politiicans is, imo, already huge, or pot would have been legalized now. if they can't figger out how they are going to pocket more dough, then they think 'why legalize this? it's making me rich now.'.
legalization might stop some of the killing on the southwest border, too. some cities are overwhelmed by the drug gangs, just like chicago and new york were during prohibition. elliot ness is not famous for nothing.