Notwithstanding the idea that working on something inappropriate for a 6 year old is somehow a moral issue, the FPS genre is much bigger than just "realistic" titles like CS/CoD, and it is regrettable that they are being mixed up in the public's imagination. While the CoD:MW series has artistic merit despite being in the "realistic" category, there are legendary titles with deep artistic value like Half-Life, Unreal, and Crysis where (to me anyway) violence is not really the point of the game.