Uh yeah? Representation and inclusiveness matter to people. Being a white male you have the advantage of being completely buried in people just like you in your media. A major theme in the discussion of feminism is how women are presented in media. The conclusion is basically that it would be nice if people could enjoy media without wondering why women and non-white people are so poorly represented in cultures that are by definition, multiethnic and at least HALF female.
The problem isn't that artists should be making art the way they want. There's nothing wrong, NOTHING WRONG with asking that artists try making something that non-white, non-male people can relate to. There is NOTHING WRONG with asking that artists appreciate that their work is in the hands of people different from them. MAYBE it's a good thing to tell a story outside the world of the white boy's perspective.
Here's what I don't understand. Why do you even care? I don't buy for a second that you're just looking out for poor artists trying to express themselves. What does it matter to you if your avatar is a girl or black? Does that in any way take away from your ability to enjoy the game or film? Is it so hard to accept that MAYBE, giving somebody else a chance to see themselves reflected in a narrative might be a good thing that doesn't actually cost you anything?
I'm not claiming games are making people sexist. That gamers can be sexist just like anyone is an indisputable fact. All I'm asking for, is some fair treatment for the rest of the people playing games who actually would appreciate seeing people of their own colour or gender in major works of media. It doesn't cost white male gamers anything that they can't afford to lose to add a little inclusiveness or representation to tthe media they care about. I'm not even going to get into the world of whitewashing or ableism. Gender and race representation in media are big enough without broadening the discussion.