And you aren't already?
Anyone who wants to do drugs are doing so right now. Whether or not they are legal doesn't matter.
The prohibition artificially inflates the value, and creates a black market for the substances. If legalized and regulated, prices would fall by a substantial amount, and the cost and violence that comes with the drug war would vanish. I'd wager that it would cost FAR less to treat addicts than it's costing us to continue this worthless drug war we are in.
I have no problem if you end prohibition, after you end the welfare state. George Soros is using the legalization movement to foist universal healthcare on us. I don't want the tail wagging the dog.