The venerable Nalo Hopkinson has voiced in on creating an anthology of a diverse stable of voices. http://nalohopkinson.com/2015/05/01/to_anthology_editors.html
Because after centuries of exclusion and telling us we’re not good enough, an unlocked door is doing jack shit to let us know that anything’s changed. Most of us will continue to step around it and keep walking, thank you very much.
So make up your mind that you’re going to have to do a bit of work, some outreach. It’s fun work, and the results are rewarding.
Do read it all.
EDIT: And when you’re done, do hop on over to N.K.Jemisin’s “To anthology editors, a corollary”. Good food for thought.