Then you need to read more. States have the right to make laws for the society they want to maintain, you're welcome to lobby your fellow citizens to elect representatives to make laws you'd like instead of whining about. Using your silly scenario comparing legal behavior "alcohol use" with illegal behavior "pot use" is sophistic. Why not legalize all drugs and compare alcohol with morphine?
Grow up, get a job and move out of your parent's basement. No wonder Liberaltarians are only the irrelevant 2% of the electorate.
What specifically should I read to find support for your claim that "the 10th amendment trumps the 9th"?
States have the right to make laws for the society they want to maintain
The Constitution doesn't bar state anti-drug laws, true. (I would on a natural-rights basis encourage every state to maximize individual liberty.) Do we agree that the feds should get their noses out of it?
Using your silly scenario comparing legal behavior "alcohol use" with illegal behavior "pot use" is sophistic. Why not legalize all drugs and compare alcohol with morphine?
What I said was, "marijuana ... unlike the legal drug alcohol ... does not increase violence." Are you claiming that if marijuana were legal it would increase violence? I'd love to see your evidence for that daffy claim.
And as for morphine: it also doesn't increase violence, so elbucko's argument doesn't apply there either.
Grow up, get a job and move out of your parent's basement.
Did all that. Grow up and stop substituting personal attacks for actual arguments.