Your math is a little off, but you should seriously consider brushing up a bit and writing. SFF (and speculative fiction as a whole) has a diversity problem.
Then there are well known award-winnning gay authors such as David Gerrold.
And I've just finished reading last year's Hugo Award winning novel "The Three Body Problem" written by Cixin Liu, a Chinese SF author.
If anything, SF is the field of fiction which has the least problems with "diversity" - its readers are open-minded almost by definition!
It'd be nice to think we'd advanced far enough that females wouldn't feel it was necessary to use male pseudonyms, but it's "JK Rowling" not "Joanne Rowling" to avoid scaring off the boys.