With all due respect I find nothing here that would compel me either way regarding pot. Let's grant all of your premises and go back to my question that was left unanswered as far as I can tell.
Look, if the relative risks are low then I really, really, really, really (did I say "really) don't give a ****.
Let me be clear in case anyone isn't getting the drift, I think those who care about the dangers of marijuana use are silly. Seriously silly. They don't know what the relative risks are and won't take the time to find out.
So yes, marijuana can destroy relationships and cost you your job. But
SO CAN FACEBOOK.
When you figure out the relative risks get back to me and we can have a serious discussion. And please, I would be happy to have that discussion. As it is I don't think any discussion has any serious merit.