Are the Post Modernists Dupes in This Greater Scheme?

Post modernism as a philosophy is self refuting. It ultimately ends up in absurdity, but it's like using systems as reductios o. But that doesn't mean i a adopt post modernism. I'm not adopting a pos because i'm asking their argumentation. And so if you adopt that guy before me was an idiot and he wata go to this logical conclusion right? So tha's the whole history of philosophy, which is telling us previous philosophers are idiots too. We should all have to show we're more idiocy than them. That would be great for some atheist systems,. However yes, post modernism itself is a complete end-of-the-world system