Because that's what happens when you confuse biological reality for starry-eyed idealistic nonsense about creationism, human-worship, and legalistic expediency.

Now beware of the egalitarians who worship retards and think the idea of fixing them before birth is somehow horrible, and remember they want everyone to be equal to those things. Yet still think that Man is a brilliant paragon of the animal kingdom ... or somehow separate and apart from it in some real, biological sense ...