why do white people complain about being black in a game?

[i'm 2 cool]

why do white people complain about being black in a game, really like in prototype 2 trailer you play as some black guy idk who he is but but when i see the comments it's a lot of racist stuff like "now we play as a ni99er" that disgusts me. And when people make games the guy is usually a white guy any ways, so do you have to go ape sh!t about being black and another thing is that in cod black ops you can only play as a white guy or asian guy i think (I'm not racist btw) there is no way to be black. And the last thing I have to say is we play as white dudes all the time and we never say nothing about it. what do you think about this?
i don't mean all i just mean some