Disabled, queer, poor teens are not shooting up schools. The profile of a school shooter is overwhelmingly white, male and middle/upper class. A shooting is an ultimate tantrum for which the perpetrator is never held accountable.
you sure about your claim?
> According to Lee (2013), there are two leading causes of school shootings: bullying (87%), as well as both non-compliance and side effects from psychiatric drugs (12%). Most school shooters claimed or left evidence behind indicating that they were victims of severe and long-term bullying. The majority of bullying victims experienced feelings of humiliation, which resulted in thoughts of suicide or revenge (Lee, 2013).
https://www.counseling.org/docs/default-source/vistas/school...
It's interesting that you quote that shooters "claimed" and "experienced feelings" of being ostracized, because many of them do indeed feel that way, like Elliot Rodgers thinking of himself as a perfect gentleman passed over by women for some incomprehensible reason despite clearly not being one. The catch is that those feelings are not always rooted in reality: many of them were well-liked and popular. What they also often turn out to be, though, is "injustice collectors" who tend to hold grudges and refuse to take responsibility for their own shortcomings (including, I assume, their own contribution to being excluded by others), according to this FBI report: https://www.fbi.gov/file-repository/stats-services-publicati...