I’m not American so I’m here asking questions to be educated.

Because I also, from the limited amount of information that I got about it, didn’t think of school shooters as specially right wing. Or as any kind of right wing organization or movement to impose their politics through means of violence against civil population.

As European when I think of right wing terrorism I think of this fascists shooters we had that literally had fascist manifestos and were part of fascista groups.

But I’ve heard many times this idea of American school shooters being right wing terrorists, so I’m genuinely interested in truly understanding what gives them this consideration, as from my POV (again a very limited POV) I thought of them as a failure of mental health, social integration and a bad school system in general, all united with the incredibly accessible firearms. But not specially as part of a terrorist group.