I’ve got nothing against firearms per se, but there have got to be better ways about limiting who has unrestricted access to them. The parents of a Michigan school shooter are facing prison time for letting their son have access. In this case, closing the barn door after the horses have escaped, but it’s a start.
There is this strange thing in the US where it is apparently normal to keep a gun in a bedside table drawer. Like, what?
The entire culture is broken - gun culture is just a symptom of it, and school shootings one of the expressions. Road-rage is a symptom too, as is youth crime.