Say Not Universalism, a criticism of Moldbug's position on Progressivisms ties to Christianity.
I disagree with it mildly, since I think there are features of Progressivism that are more or less uniquely attributable to its Christian heritage, but I do think Progressive like memes would have developed in a non-Christian descended implementation of what is often called The Cathedral (political belief pump associated with demotist forms of government).
It is a reminder to Reactionary readers that while the explicit justifications of modern political and social thinking obviously look weak at best and utterly mad at worst, we should take small c-conservative arguments in their favour very seriously. The abolition of many things because their "explicit justifications was crazy" turned out to be dreadful mistakes.
These are the grounds on which I provisionally support social democracy, while strongly encourage exploration of alternatives.
I do think Progressive like memes would have developed in a non-Christian descended implementation of what is often called The Cathedral
I think this is quite likely to be the case, since Progressivism (which one might think of as "altruism gone rampant") might actually emerge in time from the mating patterns and the resulting genetic structure of a population.
As Multiheaded added, "Personal is Political" stuff like gender relations, etc also may belong here.