I sure we do but that person doesn't for sure. The bigger picture is the government has no say what we put in out body. If a person burns a house down while intoxicated then they get arson charges. it desnt matter if he was sober or not. there is no where in U.S. law where it says arson is cool if you're all fucked up.
I saw the war in drug crap, Im not disagreeing with your opinion. if you think all drugs should be legal, then good for you.