[foal]

You're operating under the faulty assumption that gene quality is directly related to social class. Someone even mentioned the "educated" reproducing less. What on earth does education have to do with genetics? Is my college degree going to pass on to my children biologically? I don't think I'm going out on a limb by saying that the upper classes gene pool is not of particularly superior quality to anyone else's on average, rather it is upbringing that plays the major role (children emulate and learn from their parents).

By the way this idea/fear is way older than Mike Judge's film... It originated after Darwin's On Origin of Species and reached it's culmination in Nazi Germany. It's called eugenics. I am not totally opposed to certain forms of positive eugenics, despite its negative connotations, but I think saying "oh no, poor people are reproducing too much, we're going to deevolve" is ridiculous.