I think you are confusing inclusivity with representation. Having a black MC is representation, but “inclusive” means including different kinds of people, not simply representing one group instead of another. It's absolutely fine to have a black MC, but it is not inclusive, just as if the MC was white, it wouldn't be inclusive. Also, not all black people are going to feel represented by this MC either. They seem to be a woman, they have blue/purple hair, they have a certain body type etc. No single pre-designed character can represent everyone, and that is once again perfectly fine, but it is not inclusive.
I don't think the original commenter was saying they were uncomfortable playing as a black character in the first place. They were specifically talking about having a pre-designed MC instead of customization. Why immediately assume their issue was their skin color? It's okay to be passionate about black representation, but this felt unnecessarily aggressive.