I’m sorry you had to experience this, that must be annoying. I’m white so I can’t say anything about it, other than I disagree with the previous comments here.
It’s just lazy writing with your situation! She could have had a black brother or friend or whatever and he could have not talked about the struggles of being black. Cuz when you add CC you at least have to think about the possibility that someone would make a black character. This is absolutely ridiculous! If you’re gonna add CC, no need to make it fancy or whatever, just don’t include faulty scenes like that! Scenes that depend on the MC being white!