More interference then?  Like that's helped in the past.  It's not so much about drugs per se as about the ease with which people can be dragged into organized crime.  And the core of organized crime is drugs. 

It is true that taking the criminality out of that market would probably push those sociopaths who do not want to operate in the legal economy into something else - protection rackets, gambling rackets, prostitution (though not so much as a great deal of prostitution is down to the drugs issue) - but these are less easy to recruit children to I'd suggest.  Certainly not as easy as giving kids a handful of wraps or pills to sell to known customers.  Yes, if you remove the core malaise that supports all this gang culture, one risks creating a vacuum in the absence of other things for those kids to do, but with a £18bn estimated annual "peace dividend" from ending the "war on drugs" that's a fair amount of support that can be paid for to help prevent something just as pernicious taking over.