Capitalist realism is summed up in this phrase "It is easier to imagine the end of the world than the end of capitalism"

It is the belief that everything other than capitalism is impossible or idealistic. This is best exemplified in the United States and the West's complete inability to do anything about Climate change. Most people have passively accepted that climate change and its ensuing destruction is inevitable and even those that go out to protest envision a capitalist solution (Elon Musk fixing it through business or something).

It is at its core state propaganda to fill the populace with hopelessness that any change is doomed to fail.