As a male, non-heterosexual, and a feminist (No, we AREN'T a myth!), I DO think that we need more diversity and inclusiveness in OUR hobby/interest/obsession. But NOT because a small-ish, outspoken contingent of feminism says we need to. I may be a feminist, but that doesn't mean that I'm in lockstep with every other feminist out there; feminism isn't NEARLY as monolithic as many of its detractors claim! For the MOST part, feminism is a very IDIC philosophy (for non-Trek types, IDIC means "Infinite Diversity, Infinite Combinations"), though there are various "sub-philosophies," with some of them as poisonous as the WORST of the Men's Rights Activists... Unfortunately, much like with misogyny, the darker aspects of feminism tend to get more press time. I don't agree with everything that Anita Sarkeesian has to say; I honestly think that with some of her conclusions, she's reaching, and finding offense where none was intended. And now, I've gone off on a bit of a tangent. Sorry, folks!
I feel that games DO need more diversity and inclusiveness in them... Just not because a certain contingent of feminists DEMAND it. It needs to be there because for gaming, and for games, to grow, they need to appeal to the broadest possible base, which means having the broadest possible base in playable characters! It really wouldn't be THAT hard to include gender/sex/sexuality in games where the characters are "traditionally" male, white, and heterosexual. Just a few check-marks at character creation/selection, which locks in a group of if/then lines in the code, and we're good to go! It would just mean a slightly larger "plot tree," since to do it justice, the plot WOULD probably need fine-tuning, based on the character choices; some character would have a "fluid" sexuality or even gender, based on your choices at the beginning, for example, since I feel that games where there IS a gender option need to fine-tune their scripts to avoid it being nothing more than a skin & voice palette-swap, where the NPCs react to you in EXACTLY the same way, regardless of your character's gender. Equality is ONE thing, where the character is respected, regardless of gender. Having NPCs say the same EXACT things, with NO change whatsoever, is another matter ENTIRELY.
Yes, my ideas would work best as an open-world RPG-type qame, so I'm sure you could guess what my primary gaming interests are! I'd design a game/series of games that fit the bill myself, as a proof-of-concept, if I had the budget and the know-how. But I'm just an idea guy, and even if I used an existing engine to make a game like this, I wouldn't be able to do it justice. That's what the big guys are for: they just need to listen to what MANY (though not all) of their fanbase are saying, and start including more diversity/improving on what diversity they ARE including in games...
Just don't do it because a certain group of people are DEMANDING it, because that way leads to resentment and half-assed efforts. Do it because it's the right thing to do. Or do it because it's the best way at getting into the wallets of the largest number of people.