The drug trade's annual money size is estimated at $300 billion. Can you imagine how many "important people" and "pillars of society" would go into instant bankruptcy if drugs were de-criminalized with a 10-hour warning? Here's your insurmountable obstacle... that ain't going away any time soon! (Footnote: the various impacts of criminalization will continue to grow exponentially. That's the 'concrete evidence' the system demands in order to keep things unchanged and find reasons to top up already existing tactics and weapons).