See more generally: Progress; Leftism.
The public’s leftward ideological drift could in theory have continued indefinitely because of these self-perpetuating dynamics… if leftist ideas were good. However, most leftist ideas are wildly inaccurate, and leftist policies which do not lead to suffering immediately either erode institutions or are open to various forms of exploitation. As a leftist society degenerates, suffering proliferates — and the sufferers rebel.
— «Recipe for Reaction» 17f17
See related: "Progressive" acceleration.