A few million or so people could quickly be labelled "Cannabis Criminals" in less than a day.
People who purchased it legally but now own illegal flowers or brick-weed.
Back in the day in the US, 1 oz was pretty much standard personal consumption.
1 oz (28 grams) would get you thrown into prison in Thailand for trafficking here not that long ago, and shot just a while further back from that.
I'm sorry. I've never seen cannabis users staggering down the streets and collapsing in a heap in a doorway or gutter. I have seen that with those who use alcohol. So - from a societal standpoint - which is that most dangerous? Maybe sitting in a circle listening to music and laughing. Yeah, very dangerous. Or being unable to walk and acting extremely agressive when they can't get more booze? Hummm. That's a rhetorical conundrum.