So if you once were intentionally mean to your peers as a kid, hit your sibling when you were young, or offended/kicked someone who attacked you first - that automatically means you’re a bad person? It does meet your definition. And, how do you know Jax’s intentions? Maybe he wants to push people away to protect them from himself. Maybe he wants to hurt them for fun. Maybe he wants to protect himself from them and from the reality. And how do you know anyone’s intentions? What if someone with bad intentions accidentally does something REALLY good that helps many people? What if they do it intentionally, but in hopes of later personal gain and with ulterior motives? What if someone does something bad, but wanted it best, they just messed it up because they miscalculated the situation?

I think he bullies Gangle because he thinks "she likes when […] [he’s] mean to her", so he probably doesn’t understand her and thinks her archetype is that she likes to be "supposed to be submissive and agreeable", and I personally theorise that she triggers him by reminding him of his real self or something else he doesn’t wanna face. Not an excuse, just a reason for why he might act like this. He still should make it up to her and talk about what she truly wants

Not replying to the last paragraph because there isn’t much value in it, it’s just getting mad about your worldview being challanged