So I assume in your ideal world, cocaine would be illegal?
Maybe. I'm willing to restrict freedom if the danger is sufficiently great. With cocaine you could make a plausible argument that it is, but marijuana doesn't even come close to the line. There are far stronger arguments for banning cigarettes, alcohol, and fattening foods. And of course, even if I decided that some hard drugs should be illegal, law enforcement would actually respect the rights of the citizens, and not go around seizing their property without charging them with a crime.