Does it matter who tells a story worth telling, as long as it reaches the public domain?  John Howard Griffin wrote "Black Like Me" in 1961.  He was not black.  Did this diminish his experience or his story?  No.  Gregory Peck as a Jew in "Gentlemen's Agreement" in 1947.  Was a great movie.  Helen Mirren and Ryan Reynolds in the classic "Woman in Gold".  Did the fact each played a real Jewish person yet each is not Jewish ruin the movie.  Absolutely not.  Perhaps for the actors it was an highlight moment to see what Jews went through in the war years.

It is time to move on.  Let whomever has a story write,  film, or tell it.  It is the story that is the subject, not the producer, actor, reader or singer.