A crucial argument for the incessantly promoted idea that capitalism will be with us for a long time to come is the idea of inertia in human understanding. Ideas are stubbornly persistent and can only be changed over long periods of time. Slow evolutionary change is the best we can hope for, and the prospects even for that are uncertain and fragile.
If the above were true, then there would have been no revolutions in history. That is quite obviously not the case. Consciousness can change rapidly. It does so exceptionally and under rare circumstances during periods of social upheaval. Yes, not everyday occurrences. But they do happen. “There are decades where nothing happens, and there are weeks where decades happen,” Lenin famously said.