First, quit referring to it as "dope" since that is heroin, not marijuana. I suspect you know that but, for whatever reason, you've got a beef with people that don't have the iron skull you apparently have.
I guess I'd like to know what you think about people on depression/anxiety/bipolar meds since you have such a strong opinion on what a makes up "clear head"?
My grandma, who was born in 1901, used to refer to any substance considered illegal as "dope." Of course, she had her 4oz hot-toddy every evening and smoked 2 packs per day. Most people that follow the mainstream view of controlled substances do not care about the nuances; drugs are bad (unless sold by big pharma).