Doesn’t matter. It’s not about the number but their roles in the story. The core racist belief is that some races are inferior. If you make a person of the “inferior” race a protagonist = woke.
Btw, I hate having to say this, making protagonists black doesn’t make a show good on it’s own, you still have to tell a good story.
Makes perfect sense. Actors are selected from a population you live in. If you did a production of Shakespeare in Uganda most actors will have black skin, if you do it in Ireland most actors will have white skin. That’s part of what acting means - representing a character that’s not you.
Reading historical fiction is different - first it’s historical so it has to follow what really happened. And we know what those people look like. Second it’s written so you have to imagine characters. Imagination has to follow certain patterns or stereotypes you already know about the historical period.