The Problem™ — according to those who’ve made it their business to fight The Problem™:
SF/F publishing is dominated by demographic W. Demographics X, Y, and Z are underrepresented. This is obviously because demographic W is prejudiced, and therefore excluding X, Y, and Z. Therefore demographic W is on the hot seat for making SF/F into a W-only club. So, what can obligatorily concerned, properly progressive members of W do to be more inclusive and celebratory of X, Y, Z, and also A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, and the ever-fabulous Q?
The chief problem with typical analysis of The Problem™ is that it fails to ask a very important question: wence the readership? Editors and authors are not birthed whole-cloth from the dust of the earth. They always begin as readers first. I repeat: editors and authors always begin as readers first. There is no author, nor editor, in the business of Science Fiction & Fantasy literature, who did not start out as a reader. Usually, in childhood and/or adolescence. 99.999% of all professionals began life (in the field) as avid fans of some sort, whether they were laser-focused on a specific author, or a specific sub-genre, or omnivorous cosmopolitans who imbibed everything the field had to offer. Thus, to understand a dearth (or surfeit?) of any demographic, within SF/F publishing, you have to go all the way back to the beginning.