Remathilis
Legend
Gender is as much a part of a PC's identity as race, class, background or alignment.? So now we are saying not allowing a race: a race with an independent culture, probably a sovereign nation or empire, and a race that might consist of .1% of the population is the same as playing a female?
If someone were to come up to me and say that, I would ask about Eowyn, Arwen, and Galadriel. If they insisted that we were recreating the Fellowship to see how it plays out, I might give it a go. If someone came up to me and said, my world is based off: Y The Last Man, so you have to play a female. I would give it a try.
But the response was to the fact that the DM can ban anything for his personal preference. If the DM doesn't want certain races, he can ban them based on his preference. Ditto with classes (often under the guise of "low magic" settings) or alignment (no Evil is hugely common, even in AL). Background is also up to DM whim (no nobles, no far travelers). People here have argued the DM has the right to ban any and all of these things...
Why not gender? Why not sexual orientation? Why not left-handedness? Why not certain skin tones? Certainly, a DM has the right to ban or restrict those things based on preference? It could be he wants to emulate a certain genre (say, 300 Spartans or Amazons), or setting (ancient Egypt wouldn't have many Caucasians)? Maybe ask PCs are asexual because the DM doesn't want to deal with pc/npc romance? Hell, let's toss names into that mix as well: no Bob's in Feudal Japan.
Are we comfortable with the DM being able to set thier preference for any and all elements of a PC?