It is always more politically correct to go after the sellers than the buyers. Sad, but true. This is the same reason Afghanistan is the number one producer of heroin and there is great pressure for them to burn the poppy fields. Yet the fact still remains that if we stopped purchasing heroin that alone would take care of the poppy fields. And conversely, as long as there are heroin buyers in the US (by far the greatest market of heroin) there will ALWAYS be poppy fields.
Same thing with Cocaine (which is the major money-maker for the Mexicani cartels). If people stopped buying coke these cartels would lose a lot of dimes.
Infact most serious crime could basically be stopped if the users of drugs/prostitutes/stolen goods etc changed. Almost instantly infact.
However, it is always more politically correct to go after the 'bad peddlar' and not have a look at who he is selling the drugs to. (BTW: Most heroin and cocaine sales (apart from the low-grade 'crack' cocaine) are sold to middle to high income clientelle. People who should know better).
But that would necessitate the borders be controlled in a way they aren't now. *sigh* Back to square one. EVERYTHING comes down to controlled borders.
Because one big reason --- the pro-drug crowd always wants to paint the drug user as a harmless defenseless sort of individual. They'll wring their hands and sob for the innocent pot heads sitting around in prison for nothing more than passing a joint. They will say go after the dealers but leave the sweet drug users alone.