Among the central principles of neoreaction – one of the top two, I’d say – is that long-separated human populations differ, innately, in significant ways, and that human cultures, when correctly understood to be part of our extended phenotype, reflect this underlying biological variation.
If culture is phenotype, then it’s reasonable to expect that the well-being of any culture is affected, positively and negatively, by changes in the aggregate genotype of its host population. This was, not so long ago, perfectly uncontroversial among intelligent people, but it is a great heresy today.
Eppur si muove, however: heresy or no, this is indeed the way things are, and some of us still have eyes to see. One of them is Richard Lynn, who in this hour-long video gives an explanation of eugenics and dysgenics that you won’t be shown on PBS.