Libertarians have very compelling arguments in favor of drug legalization. I have been convinced by these (and similar) arguments. But recently I heard one counter-argument that seems very compelling as well and, if it does hold water, I am ready to change my mind on that.
The critics argue that the FARC are currently the major producers and distributors of cocaine in the world. So, in a sense, they have a monopoly on drug trade. If legalization occurs, their main source of income will be automatically legitimized, making them an even more powerful organization. And it will be very hard for competitors to take a significant share of their market. So, while these critics grant that, in theory, individuals should have the right to consume whatever substances they want (agreeing with libertarians on this point), they say that, considering the actual geopolitical circumstances, this would be a disaster.
Does this argument make sense?