On some level the premise of your statement is not totally incorrect. As a result of legalalized weed, It has been reported that Mexican cartels have moved to other sources of revenue such as kidnapping [1].
One of the main goals of legalization is to starve black market actors of revenue. Extortion and kidnapping don't scale nearly as well as dope; therefore they are orders of magnitude less profitable.
One of the main goals of legalization is to starve black market actors of revenue. Extortion and kidnapping don't scale nearly as well as dope; therefore they are orders of magnitude less profitable.
1.http://fusion.net/story/108575/how-mexican-drug-cartels-are-...