I haven't actually seen Idiocracy, but I know enough about it to recognize that (a) like most SF, Idiocracy is a commentary on the present disguised as a commen

I haven't actually seen Idiocracy, but I know enough about it to recognize that (a) like most SF, Idiocracy is a commentary on the present disguised as a commentary on the future; (b) The folk theory of demographics embodied in Idiocracy (together with the time machine, of course) is a framing device, designed to give us an excuse to adopt a ridiculous perspective. It's a deliberately silly theory, just as Beavis and Butthead were a deliberately silly representation of the average fan of MTV in the 1990s.