It's called hypernormalization, and it also arose in the Soviet Union in the decades before its collapse.

The word hypernormalization was coined by Alexei Yurchak, a professor of anthropology who was born in Leningrad and later went to teach in the United States. He introduced the word in his book Everything Was Forever, Until It Was No More: The Last Soviet Generation (2006), which describes paradoxes of Soviet life during the 1970s and 1980s.[3][4] He says that everyone in the Soviet Union knew the system was failing, but no one could imagine an alternative to the status quo, and politicians and citizens alike were resigned to maintaining the pretense of a functioning society.[5] Over time, this delusion became a self-fulfilling prophecy and the fakeness was accepted by everyone as real, an effect that Yurchak termed hypernormalisation.[6]

https://en.wikipedia.org/wiki/HyperNormalisation