I don't think you have ever seen a person who had the grace, courage, and understanding to accept persecution without any kind of emotional reaction. It makes the bully look stupid and embarasses them thoroughly. It creates a contrast between real strength versus the insecurity the bully is trying to cover up by acting tough. Whereas if you fall into the emotional trap laid by the bully, his way works and you look weak while he looks dominant.
Yes, I have. I used to have a friend who bullied throughout the higher grades in school. He was fine guy when alone with him, but had some need to bully in group and on classes (nurse now, btw).
But the issue isn't about that. Playing with emotions and mind can be really powerful. The only way to harm person isn't just kicking his ass. At least physical violence does only physical harm, but psychological violence can really mess up your head for years.
I am sorry that you're so thoroughly identified with being some kind of "outcast" that you cannot separate a rational look at the situation from your emotional knee-jerking and desire for vengence against someone who probably has a lot in common with those who have tormented you. It's like you're still reliving what you went through instead of overcoming it and being better for having endured it. That's too bad.
That also means you're unfit to form a solid, well-founded opinion about this until you stop feeling like a victim and identifying with people who are victims.
I am not feeling knee-jerking or vengeance. I can take that shit, I've seen a lot. I do, however, feel bad for people who are being bullied or treat badly for these things, especially when they cannot take it. You need long time to build up that kind of confidence, and these people are struggling with them every day. They often cannot do that.
Most people are only "nice" because they want to obligate you to like them and make them feel like good people. If they were truly good people they wouldn't need you to feel that way. They'd treat you with kindness and dignity whether or not you appreciated it because it would come from who they are, not who you are.
I live in a theravada buddhist country. Most people really are nice and take care for each other. Yes, even unknown people and even when they don't have much themselves. You should sometimes see how the world is outside US.