If Fukuyama’s end of history is real, then the western world is already in decline since the 90s.

There would probably not a collapse (the real copium is people who think that there is an actual end of world societal collapse), most likely is what will happen is progressively, there is a loss of relevancy and one day you’ll see a news article on how the US has become an ‘‘emergent market economy’’ and then life continue because people within are too tired to care of those who care will have no power to think of a valid solution outside of their neoliberal think box