So you want to go back to alcohol prohibition? Alcohol kills brain cells every time it's used. Your local skid roe winos have plenty of mental issues but there won't be many potheads among them.
In the absence of cohesive analysis - when competent analysts from what seem to be believable groups contradict each other - yes, I look to my own personal experience.
I trust myself.
I can’t believe you are trying to convince me that pot is benign and those who use alcohol are messed up.
The vast majority of my friends/acquaintances use alcohol. The vast majority are sane, productive, rational. I do know a couple of what I consider to be functioning alcoholics.
A plurality of my former (liberal) friends used marijuana. A majority of them went on to harder drugs, had mild to serious mental issues, and were less and less productive until they became just about inert. Except for the few that quit.