The more options in an RPG, the more playability and characters a player can have, which is as people stated the point of an RPG. It makes no sense to have fewer options, the more options the merrier. Variety is a good thing. If people want to play themselves in a RPG, that's their business and it's still role playing because they are putting themselves into a role in another universe. Sounds boring to me, but honestly I think everyone puts a little of themselves into the characters they play.
If I, a straight white female, wants to be creative with the characters, as many options as possibly should be there. One play through I may want to play a transgender, black character with a heart of gold. Then another play a flat chested, masculine and eastern looking woman who is very feminine in personality. Then play in another game, a white, very feminine, pretty looking man who is a **** and sleeps with lots of women.
It's not just about fairness, but it's also about playability of the RPG. Not everything will be achievable, it would be unrealistic to have everything because there is that much diversity in the world. It just should be a goal to cram as much character options in as possible, not limit to the basics because it's easier that way.