Contrary to what you believe, most kids actually do not murder homeless people. Also, you are kinda ignoring the fact that the giant robot fights aren't one-sided acts of violence where the kids get to set a sleeping man on fire, but life and death situations where they go up against cosmic horrors that are in the process of flattenign a city, cause them excruciating pain, make them fear for the lifes of their friends and regularly lead to extended hospital stays to recover from the horrific injuries. Shinji is literally forced to strangle Asuka at one point. On top of that, he is constantly crushed by the pressure of having to save humanity. Please stop living up to your name and being completely callous about trauma and hurt children because you saw a news report once.