>>520181775
The background of this character (I mean ultra-violent Batman, not the other guy) is that he had an activist father who later became a schoolteacher. And then he was cut down in a school shooting or something and that is why Batman hates guns and fights against trigger happy bigots.

Btw this story was published in a special issue that allows writers to do whatever the hell they want with the characters. The main series is pretty good and has proven to be incredibly popular. It is very edgy and blackpilled