This is making me a bit ashamed to be honest.
Ashamed that I'm even participating in this discussion. Half the instances of sexism, racism or anti-LGBT content, excluding those that are part of the game's universe, are matters of poor taste on the part of producers (Dead Island torso) trying to cater to a demographic they don't understand (nobody defended the torso by saying 'but it's hot'), or practicality (gay planet). I really don't see much actual sexism in these insular incidents. There are more general things that can be easily fixed, like having more realistically distributed/shaped female characters (except in universes where this is explained), having SOME (not all, that's just stupid, unless again the game's setting explains) LGBT characters where any pathetic attempt at romance is implemented, and being sensible about who the bad guys are and what colour (again, if they're all black and it's set in the heart of Africa, nothing to see here). In fact, I'd go on to say a lot of what remains is poor/unimaginative writing/design as opposed to actual prejudice.
The fact that there even is this whole sexism thing that comes up every time something possibly sexist is in a game, and that people have to weigh in constantly, sort of disproves the point. The people who threatened Sarkeesian with rape and murder are not most of the demographic. And lastly, I sort of don't care what happens in other games unless if affects my game. If a series I'm playing changes tone for the worse or has something sexist in it (and I mean what I would consider sexist), then that matters to me because I expect and deserve better (I paid for it and have played the series before). But otherwise, I don't even play the game, so if it's sexist, it's not getting any support from me anyway and there is no reason I should have sway over it.