What are you talking about? Proposition 215 is only valid at the state level. In no way does it change federal law, which prevails over state law.
The Controlled Substances Act of 1970 specifically bans the use of marijuana for any purpose, medical or otherwise. The CSA has been upheld by the courts as constitutional.
If a state law conflicts with federal law, federal law prevails. Period.
"Then what is the point of including the 9th and 10th Amendments into the constitution if Article VI says that the federal government is the supreme law of the land?"
The states may write all the constitutional laws they wish. All of these laws are valid, as long as they don't conflict with federal law.
And feel free to support whomever. I don't live there.
Any opinions on the original topic or did you just stop by to argue (some more) about the WOD?