[standardUser]

"Decriminalization is the thing you're looking for "

That is not even remotely close to what I am looking for. No substance that is widely consumed by people should be produced or sold without comprehensive - if not excessive - formal processes to ensure purity.

Black markets only exists because states enable them. We have unlimited evidence that, when you allow people to produce and sell products and make a profit, even with significant regulations and enforcement, they will do so and usually not break the rules.