It probably will kill less people than drinking will, or does. Many people who habitually became drunk will switch to getting stoned, and ease up on the bottle.
But we knew what to expect out of alcohol abuse. This will be something new and weird.
It goes without saying that abusing anything is bad. But there is a silver lining here, I believe. People will have only their personal selves to blame. This could set the stage for a return to God that people might have put off while it seemed that Uncle Caesar was their savior by keeping them in a virtual rubber room.
Not sure how you come to those conclusions.....without data. It's just opinion.
Moderation in all things!!