Is it wrong to create an anime/cartoon with too many or all black characters?

I've participated in several discussions and they always say that the problem is not the skin color, but the lack of original characters, that is, the problem is not being black, but changing original characters. But I have noticed strange and incoherent things. I follow some creators who are creating ORIGINAL black characters and are getting the same criticism for creating too many black characters or exclusively black characters. If the problem is not skin color but not creating original characters, then why do SOME people still complain? Why do they act like there are no animations only with whites and Asians and complain when there are only blacks? Does not make sense. Some say it's pushing an agenda. If so, then is it correct to think the same of the other works?

No fighting, talk politely.

Is it wrong to create an anime/cartoon with too many or all black characters?
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