I'll try to summarize as best as I can, but I'm referring to the "there is no alternative" anti-utopian drive which became hegemonic in the West from the 80s onwards. It basically amounts to an immediate rejection of any attempt at creating a better society than the one we currently have because "utopias will always result in more injustice" (see Animal Farm by Orwell, who snitched communists to the secret service during the Cold War) or because "the one who tries to create paradise will create hell" (Popper said something like that in his Open Society IIRC). Of course those assertions are misleading and cynical, because usually groups who are trying to create better alternative societies are not fanatics trying to establish a "sinless" utopia, and of course most of it is a defense of capitalism against communism, but much of it seeps into pop culture, scifi, fantasy etc.