It is pitiful, because you have not grown beyond what happened to you when you were teased by other children. That is what is pitiful. You are an adult now, not a child. Adults should understand that children do childish things. If you are still holding on to what other children said to you as a grown person, you have a problem you may need professional help to get over.
So, yes, walking through adulthood holding on to how you were teased is pitiful. We can all give examples of being teased. No mature person takes that as an excuse for how you carry yourself as an adult.
Last, I don't care who he felt aligned with as a child. I am talking about his attempt to state that Black American children were trying to make him lesser, when all they were doing was what children normally do: teasing each other. So no, I am not going to let someone try to BS about what was going on in the mind of children, like they were thinking like adults when they teased him. I will point out the asinine nature of the assertion.