Read Danny's thread here and then look below this tweet, for me to back Danny up - because I get asked about this at every panel I do. https://twitter.com/weredawgz/status/1301348648782041090

As a white writer in 2020 it is your responsibility to include characters of color. Not necessarily every color, but definitely reflect the environment in which your book is set and questions your racial choices.

That does not mean, however, that it is your job to tell stories about being black. That is something that should be left largely to black people. If you are telling a story about a wizard saving the world from evil, you can write a black wizard.

If you're trying to write a story about a black character struggling to find a connection to their African ancestry as a white author - DON'T.
That's not your story.

And even in the prior case, do some research. Be more specific about your wizard than "is black". Know where they are from. Know about their family. Make sure they are a fully realized character AND THEN write a story about the magical adventure of said wizard.

It should go without saying that all black folks aren't any more alike than all white folks. If you want to represent other cultures, you should know something about them. Your fiction doesn't exist in a vacuum and neither will its representations of race and ethnicity.