With respect to this study reflecting “polygenic adaption,” I would like to comment, in effect pre-empting retarded “arguments” by anti-Salterian (and anti-White) activists asserting that the genetic changes discussed somehow invalidate the EGI concept.
There has been a mistaken belief – from both Right and Left – that the concept of genetic interests supports a form of biologically reactionary genetic stasis/conservatism, in which any change, even positive, is eschewed. That is false. In On Genetic Interests, Salter makes clear that replacing maladaptive alleles can boost the fitness of the distinctive genome, hence enhancing genetic interests, and there is also the statement that genetic competition and unequal outcomes must be allowed to continue.
Further, natural processes such as natural selection, sexual selection, genetic drift, etc. will occur, will always occur, and, of course, as a sexually reproducing species, independent assortment and recombination during meiosis means that the “genetic deck of cards” get “reshuffled” each generation. That is part and parcel of sexually reproducing life, natural selection is part and parcel of all life, and so all these phenomenon are also part and parcel of genetic interests. Of course, there will be change. Indeed, the EGI concept is also compatible with eugenics, and Salter has written on eugenics as stand-alone essays in other forums (for example, see footnote).
What EGI does reject is large scale (and unnecessary) replacement of the genetic information of one people by another, through mass migration, miscegenation, etc. That a single ethny will change somewhat over time due to natural processes is of course perfectly natural and acceptable, that this ethny will be race replaced or radically altered through mongrelization is neither natural nor acceptable.
It is quite possible to compare the genetics of ancient peoples to that of moderns. One can observe that, for example, despite thousands of years of genetic differentiation, Otzi the Iceman falls within the European genetic spectrum, and is more similar to modern Europeans than to, say, Nigerians or Chinamen. In this respect, the genetic interests of Otzi and his co-ethnics of his time are preserved as much as possible in modern Europeans; however, if modern Europeans were to be race-replaced by alien peoples, then this broad genetic continuity would be broken. Otzi was a form of European, as are the different European peoples of today. Nigerians and Chinamen are not. One can compare the native Britons of today with those of the past and note significant genetic differences due to selection (as well as drift); nevertheless, these peoples share a genetic history and are more closely related to each other than to members of other races.
I trust the point is clear. Indeed, the ability to adapt to changing environments, without large-scale race replacement or mongrelization by truly alien peoples, would help preserve the genetic interests of past Britons in the present population. The genetic interests of those past Britons are not threatened by selection, but instead by the mass immigration that will make Britons a minority in their own homeland in the coming decades.