That last part is something alot of people don't seem to understand, and seems to be where alot of this shit comes from. You notice these shooters are almost always from liberal cities? Maybe that's because that's the only part of the US that's really truly going to shit. The major cities are either turning into or already are fucking hell holes. Violent crime is spiking, costs of living are insane, laws are ridiculous, the shortages are hitting Literally all of "this is what's wrong with America" originates from these places.
But millenials and Gen Z (and often most lefties in my experience) are often convinced the problem is universal, and that the bughives are some sort of bastion of light in a Judge Dredd style wasteland. They're convinced that the urban lifestyle is as good as it gets, when it's the opposite.
I feel like that's alot of what spawns these shitheads. Assuming this glow op was real, which I doubt, look at this kids situation. Some Gen Z fag trapped in the Buffalo Bughive 5000, and he could just leave but he doesn't. Instead the constant urban hyper lefty-ism, class wars and struggle bend his mind until he snaps. Same situation with that kid in downtown DC a week or 2 ago.