What can i do?

- Complain:
Will i get something? Yes.
It will probably be bad. Made by someone who doesn't care. For something that he doesn't know.
The best you can get is something mediocre.
Also, how many people there is that can make soemthing that they (selfishly) want? Few, and how many will be available to do what you want? Not much.

Is a commonly abused mechanism.

Completely passive.
It's meant so another person do what i want.
 Usually because i can't do what i want, so i complain so another person does it for me.
That ends up leaving the complainer as a helpless person waiting for some  rescue, like the damsel in distress.

Another reality of the market is that most game project needs resources, and a lot. So usually one developer can't decide exactly what to do, because he doesn't have all those resources.  Except the case of an indie developer.

In a normal case, the developer, musician, writer, are limited by a general idea, dictated by someone that funds the project.
So, in the end, is people limited by the market. Because those person will invest only on stuff that they know will sell, so they get their money back.

Basically this ends up with a vicious circle. Companies will make games for man because man buy games, for man, developed by man.

So an option is not to complain about sexists games, but to support games that you like.

- Fund:
Another way would be to fund a project of this kind.
For example, if you had the resources, you could go into some place full of developers (gamesprout.com) and ask for developers and you'll see lot of hand rising.
The product wont be that good because it wont be made by people with expertise in the field.
 If you don't have spare money (guess what, none of us has, that's why you don't see much experimental games) contribute with what you can.
Can be music, writtings, settings, stories, graphics, developer, etc.

But who are more privileged to change this? A game designer. What do i need to become a game designer? Well that's an old question by now [insert extra creditz video]
Usually a good game designer must be:
creative, social, empathic (to contact with every teammate), can analyze and transmit experiences, and schedule the team work.
sounds like a female to me.
So i think the best female game will be designed by a female. (yes, is obvious).
The ultimate question will be, what are they waiting?