[Apocryphon]

This is a pretty great pop cultural analysis of American society of when Idiocracy was created.

I think the movie is a reflection of the time it was created, but it's a little less tied to that moment than you think. If you think of it as a subversion of the generic Jetsons vision of automation leading to mass complacency then it could be a more universal film than you portray it as. (Probably pre-Jetsons but '50s postwar sci-fi probably exemplifies that vision the best. Or maybe it extends further back, and the Idiocrats are just tackier versions of the Eloi from Wells.)

I think the big realization we have now is that automation is far less utopian than we expected, it comes with complications and externalities and inequality, with a lot of what we have now is just abstracting away work so that someone less well-off and farther away is doing it. Funnily enough one minor "plothole" I always had with Idiocracy is that if everyone is stupid, how were the machines still semi-functional? How did their society produce the cameramen at the monster truck death rally? Obviously, the whole movie is a satire or lampoon, but it made me think how society could culturally regress while still remaining technologically semi-functional, buoyed by artifacts of the ancient past like the Eloi or some descendent race from a fantasy setting.

I think if you were to make an Idiocracy today it would have to be focused on how social media and the 24/7 online culture have disrupted the way we relate to one another. Instead of 1001 channels of trashy reality TV it would be conspiracy theories and fringe ideas and charlatans appealing to both emotion and pseudo-logic. (Interspersed with unboxing videos and ASMR and live-streaming, sure.) It feels like anti-intellectualism today is fueled more by anger and zeal (this applies to all political stripes). The current boom feels a lot less even and people are far more desperate and stressed out. Our attention spans are even more frayed. Whereas the original Idiocracy was more about complacency birthed from prosperity, as you pointed out. (Though that rather ignores specific Bush administration policies that could be criticized as anti-intellectual, whether culture wars at home or military aggression abroad. But maybe their absence from that film makes it, as I mentioned earlier, more generic.)