> But the majority of drug use are home-grown.
The thing is, there are three categories of illicit drugs:
- relatively harmless / have established use: a lot of the "home grown" drugs fall under this category, they are usually low-price as they are mass products. Marijuana and diverted pharma pills, mostly.
- stuff that is extremely fucking dangerous, like fentanyl, its even more strong cousin carfentanyl, meth or self-made stuff like krokodil (gained from boiling codein cough medicine). Extremely simple to make in general, extremely potent, extremely hard to wean off.
- stuff that fuels organized crime, aka cocaine (almost exclusively grown/refined in Southern America) and heroin (which comes to an overwhelming degree from Afghanistan's poppy farms).
The large cartels almost exclusively focus on the latter, as there's a ton of money to be made smuggling that, which is a very real problem as the cartels can offer sums to corrupt officials even in Western countries that pay good money to border control staff. A boat full of cocaine can make hundreds of millions of dollars, while no one cares about a boat full of weed - not worth the effort.