#HowToArgueWithARacist doesn't address Harvard geneticist David Reich or MIT's Robert Weinberg? Traits influenced by genetics, including cognitive & behavioural traits, are expected to differ somewhat across groups as allele frequencies differ. nytimes.com/2018/03/23/opi…
The section in the @guardian asked why black athletes don't dominate swimming. Aside from the obvious point that swimming has higher barriers to entry than sprinting, there are average biomechanical differences Rutherford omits to mention. pratt.duke.edu/about/news/spe…
“Blacks tend to have longer limbs with smaller circumferences, meaning that their centers of gravity are higher compared to whites of the same height,” Bejan said. “Asians and whites tend to have longer torsos, so their centers of gravity are lower.”
Rutherford also omits the work by Jon Entine and David Epstein on physical differences that help explain why athletes with West African ancestry dominate sprints while East African athletes dominate long distance. geneticliteracyproject.org/2016/08/15/ken…
Polynesian athletes are another example. They make up half the NRL rugby league players. They produce a high proportion of athletes with size, bulk and explosive speed.
shapeamerica.tandfonline.com/doi/abs/10.108…
shapeamerica.tandfonline.com/doi/abs/10.108…
Another example is visual memory in Australian Aborigines. Clive Harper, professor of pathology in Sydney found that the visual cortex – the part of the – was about 25 per cent larger in aborigines than in europeans. goldenageproject.org.uk/58aborigine.php
There are also populations that have adapted to living at high altitude. royalsocietypublishing.org/doi/full/10.10…
Rutherford seems to want to deny this diversity in his quest to eliminate discrimination. A better approach might be to suggest treating people as individuals while not denying average population differences. 
