The change in cannabis's status is best described as a recognition that prohibition is a failing strategy, one that often results in fabulously rewarding criminals. Same as alcohol.
If you guys love criminal cartels and want to see them continue making trillions then by all means continue whining about legalization and continue supporting prohibition.
In my city there are now 5× as many cannabis stores as there are McDonald's, but the cannabis usage rates haven't significantly risen. That's a heck of a lot of money going into our local economy that formerly went directly to organized crime, mostly Hell's Angels or affiliated gangs here. Regardless of one's personal opinions of cannabis usage, I think that is an obvious net benefit to society.
We have 7× as many liquor stores as McDonald's, just for reference, and alcoholism is unarguably a far bigger problem here than tobacco or cannabis usage.
Sorry mods for the forbidden discussion, and also for @jpberg