Ultimately, the marketplace will be defined as regulators decide, with input from special interest groups -- large distributors like pharmacies and liquor control boards, the Canadian Medical Association, the Canadian Pharmacists Association etc. -- that have influence in helping to shape the law in their desired direction.
It is important to understand that neither President Santos nor others in Colombia's government (or other countries' leaders) have suggested we replace the failed war on drugs with a global "free-for-all." Rather, he suggests we replace what is now "a war on people who use drugs" with new and improved "drug control policies."
In a world committed to lowering our carbon footprint, the environmental and economic bottom line is that the current unnatural, environmentally unfriendly, high-cost producers are unlikely to succeed. This is the challenge of the Canadian/U.S. marketplace.