How do you know? Your own numbers don’t support this theory:
When nearly 90 % of the population is indeed “white” (for decades), these numbers reflect(ed) the demographic reality in an almost uncannily precise way.
But hey, you know what: Since you seem to know a lot of such cases, why don’t you join my quest to find examples for discrimination in the publishing industry? You’d think at least one or two victims (or organizations on their behalf) went to court over this.
Alright. Here we go:
“Del Arroz, the author of Deus Vult, Flying Sparks, Justified, and more, sued WorldCon back in April 2018 for violating Civil Code Section 51 of the Unruh Civil Rights Act, violation of Civil Code Section 51.5, violation of Civil Code Section 51.7, violation of Civil Code Section 52.1, and defamation.” WorldCon Apologizes And Pays The Piper In Settlement With Jon Del Arroz - Bounding Into Comics
I think they do, but again: I’m no lawyer, so I might very well be wrong.