Admittedly it's been a long time since I watched it but isn't the introduction sequence straight-up apologia for the theories behind eugenics? The idea 'what if society got massively more stupid' isn't a bad one for a film but 'the rabbit-like hordes of the stupid outgroup ourbred our elite ingroup to extinction' rubs me the wrong way.

Maybe I'm being unfair to the film because of the fanbase as well. I've always seen it as a mild red flag when someone says it's their favourite comedy, but it's hardly the film's fault it got popular on places like reddit.