Even when it doesn't. Only took 'em about 150 years to find that. Maybe they'll find a right to drugs tomorrow. No point in us looking for it, though. It ain't there until they say it is.
You’re absolutely right. They also found that alcohol, tobacco and oil cross state lines. And they are the last word. You can however change the constitution if you can rally all the libertarians who never use dope in one mass movement for the good of the children.