This is probably the dumbest thing I have ever heard. You completely discount the fact that drugs are a factor in a HUGE percentage of crimes. Whether it be burglary to get money for drugs or murder to get rid of a rival dealer drugs are the underlying cause. If drugs were legal, you MIGHT reduce the number of deaths among dealers, but the number of burglaries and assaults by addicts would go through the roof.
Well atleast I'm not try to prove someones opinion wrong like a douche bag.