To the extent that life experiences are affected by ethnicity? Sure.
Did you actually read the linked article? It’s got lots of statistics.
I do find it interesting that when nearly 90% of acquiring editors are white, and nearly 90% of the books they buy are by white authors, and that’s the case for decades, no one says a word about racism.
But suddenly people are very worried because one (1) Black editor has the temerity to suggest that buying more books from Black writers might be good.