I don't use marijuana. I don't use it because I don't like it. But I would support your right to use marijuana if you want to, just the same. Fortunately, my drug of choice (scotch) has been legal since repeal of prohibition in 1919.
California's Proposition 19, which would have legalized recreational use of marijuana, went down in the recent election. Here, Mark Thorton explains the economics of the whole deal.
Make no mistake about it; the economics of the deal prevailed, as they always do. Shame that more folks don't understand more about economics, really.