If it's okay to acknowledge this racial difference (in averages, mind you) then it should be okay to acknowledge other racial differences. In other words, this particular average works against Asians (among heterosexuals at least). Their higher average I.Q. works for them (speaking of Northeast Asians here).
You must have completely missed the part of his post that addresses this directly.
While penis size is most certainly quantifiable (just get a ruler), intelligence is much more tricky (and controversial). Vast amounts of Neuroscientists and Psychologists (people that have studied this their entire professional careers) can't even come into agreement on what exactly intelligence even
is, let alone if there is any way to accurately measure it for comparison and statistical purposes in addition to creating a culturally bias-free method to attain these figures.
And while we're on that subject, go find a bunch of biologists (geneticists specifically) that can even agree on what the hell "
race" even entails. The majority of traits that are associated with race to the laymen (skin color, eye shape, hair texture) are actually regional phenotypic characteristics that have very little to do with the underlying genotypes of many populations. While these characteristics are easily recognizable on the surface level they carry next to no medical relevance and thus mean jack shit when it comes to any actual biological classifications.
There are ways of grouping certain populations together that have certain common ancestral lines, but really, if one goes back far enough in human genetic history everyone on the entire planet has one ancestor in common. (Google the terms "Mitochondrial Eve" and "Y-Chromosomal Adam")
What it basically comes down to is that you're drawing a comparison of groups by attempting to find a correlation between two variables that aren't even properly defined through any sort of scientific consensus.
Really, most differences between peoples on the planet are much easily attributed to the variations in human culture and the effects of the environment in shaping the many methods of survival depending on available resources rather then underlying "racial genetics".
