Junot Diaz
Junot Diaz won the Pulitzer prize for his fanboy loving, nigger-reclaiming (he gets to use that word), excellent-in-all-its-parts novel The Brief and Wondrous Life of Oscar Wao. (Published by Penguin. Not Tor. Hmmm.)
Anyhow, several of his short stories can be found at The New Yorker. And while they aren't all speculative, they do focus on unicorns, people of color. Wao. Wow.
Alma
The Brief Wondrous Life of Oscar Wao
Homecoming with Turtle
I'm thinking, maybe the price to be paid for turning entire people groups, and its members, into narrative tropes that glorify manifest destiny and colonization--and persisting in this-- is that when the metanarrative begins to magnify the humanity of all people-- not only the white ones-- the hidebound genre elides itself.
x-posted, with changes, to earth tone.