Story here.
It used to be conservatism and reaction which in 1950 were said not to exist as real ideas but only as mere actions or irritable mental gestures. Now it's liberalism and progressivism occupying that role, but without actually resembling ideas. They represent emotions instead, usually of revulsion, especially for people who are fat, or of shame, especially for holding otherwise intelligent opinions critical of other people's culture, way of life and religion.
