How to create an idiocracy and ruin the gene pool: The "smart" people worried about their "carbon footprint" or "quality of life" deciding not to have kids while the knuckle-draggers down the street have 10.
You realize Idiocracy is based on highly controversial theories of IQ, genetics and eugenics? And that you're also using a rather laughable definition of "smart" that involves deciding not to have children because of some stuff some academics said, when they've been saying the same things for decades and have been proven wrong many times before? This is not a definition of smart I'd subscribe to.