Netflix released the original show “Supacell” with new and original characters, but in the comments, right-wingers are complaining that the protagonists are black. The film quiet place day one was released and had a black protagonist. The character is new, original and coherent. Quiet Place is set in the USA black people exist in the USA, so what’s the problem? If they are going to complain anyway, then why do they ask to make new characters?
The simple answer is: Because they aren’t same people.
It’s unlikely you’ll to find a single individual complaining about both of those tings. Some individuals that will complain about one, and other individuals will complain about the other. You’ll then even have 3rd subgroup who will complain about any minority actor in a lead roll at all; But that’s a different complaint than the two you’re talking about.