My question is; what do you think that these thugs would do to make ends meet? Most have felony records, little education and probably a drug habit.
Do you think that they will:
(A) work at Mickey D's for minimum wage
(B)move on to a different a criminal enterprise, say prescription drug dealing, kidnapping for ransom, armed robbery, home invasion, hijacking, extortion, gambling, human smuggling, prostitution/slavery.
My vote would be B
Most drug kingpins and their organizations do not actually *USE* their own product. Sometimes the local street dealer does, but they tend not to last long - as their use cuts into their profits until they can no longer afford to both buy and sell the dope.
Most of the drug kingpins, who pay farmers to grow the coca/opium/whatever have invested a large amount of time and money in the operation, so they aren't going to simply drop it. Furthermore, it will also be much cheaper - ie: legal - for them to distribute the product, so they can shutter their entire illegal transshipment operation (you know, the drug boats/airplanes/semi-submersables).
Though, the drug-runners and hired muscle would move on to the next illegal operation, but the big kingpins wouldn't really have any reason to.