This is the inevitable outcome of the combination of the proliferation of guns in the US + the over-the-top fearmongering of certain high-profile personalities (specifically on the right). It was never going to end any other way.
Scare people into thinking everyone is out to get them and tell them they have to arm themselves, and you get tragedies like this: the guy that shot a teenaged girl through his front door when she was looking for help. This kid shot in the face looking for a place to take pictures.
People like Tucker Carlson and all similar scaremongers (too many to name) are partly to blame for this. I’m old enough to remember the red scare, where average people thought communists were hiding in every suburban neighbourhood, and also the satanic panic – this is all that but on steroids.
Everyone isn’t out to get you. They never were. But people are becoming millionaires by riling people into killing each other *for no reason *, and unlike back then, now everyone is armed and convinced to shoot first like every place is the fucking OK Corral.
e: and to add a layer of irony, yes, Wild West high-noon shootouts are the same kind of myth-sayings as boiling frogs – pretty much all old west towns required you to surrender your guns to the sheriff on entry. Things were actually safer back then.