I cannot answer for my fellow FReeper, but as one who has a similar opinion I can say that we have been flamed too many times by the same people using the same refuted arguments to be anything other than frustrated.
The "War" on Drugs is "lost". Give it up. Mrs. Reagan is right. Just Say No! Holding society to blame for your shortcomings as a parent just doesn't cut it. That's really what it boils down to and the lack of personal responsibility involved being advocated on this site is rather perplexing.
Personal responsibility? What does that have with the question?
I am personally responsible for MY ACTIONS. God is my judge. Your opinion is anti-thetical to the Constitution, and to the Scriptures. How does that relate to personal responsibility?
You imply that it is wrong to smoke a green plant, since you agree it should be the gum't s job to define it that way. I see nothing in my Scriptures which would prohibit it. Do you find it in yours? I see lots of moderation required ... but the only forbidden thing was found in the Garden of Eden!
Your statist views are duly noted... and liberty apparently has no place in your economy.