I know this is a classic libertarian argument, and I hope you will forgive me that, but this whole thing is just silly. Medical considerations around marijuana are at best tertiary considerations. Far more important are 1) personal freedoms and the elimination of the standard of a victimless crime and 2) the incredibly damaging effects of the War on Drugs. Deal with these two and it is obvious that marijuana should be legalized. Who cares about the medical benefits.