I'm male and not at the centre of those worlds. Those are fictional characters. I'm as happy to play as a male or female character in a game. Most of my games seem to have female protagonists or character creation options. It probably depends on the kind of game you play. I'm playing a lot of adventure/PnC games at the moment.To all of those males here who are not able or interested to understand.
Imagine you are not the centre of the world and worlds, may they be Assassin's Creed, Watch Dogs, Uncharted, God of War etc etc. are not build around you. You are an afterthought, at best.
You would want representation. Representation of the players, to use a marketing term, #4theplayers. Not more, not less.
Now imagine other gamers would tell you to shut up. To stop complaining for whatever strawman reasons. That they don't understand.
Those guys sounds like sexist assholes, don't they? Don't even try to be those guys.
This issue seems a tad overblown. Girls can play as guys and vice versa. Most murderers are male, most of the people in prison are male. Most of the game designers who make games about killing lots of people are male.