There will always be a group of bleeding hearts who take offense at the most inane elements of any game, movie, song or what-have-you. I've found the best way to deal with them is to not dignify their idiotic concerns with discussion. Basically... ignore the hell out of them.
Did these saps have any objection to the fact that you spend much more of WaW firing at human beings? Doubt it.
Did these saps have any objection to the fact that you spend much more of WaW firing at human beings? Doubt it.