Earlier quoted context omitted.
I don't see anything wrong with the quote you posted. It doesn't imply that people of different races are stupid or inferior. It just implies that you expect genetic differences to correlate with all manner of other measures. Respectfully, I think you're reading into it too much.
While there's technically nothing racist about a small variation in intelligence. But this comment leaves a bad taste in my mouth, as we know that. 1. Individual variation in intelligence dwarfs any population level measure with regard to race. 2. The evidence with regard to IQ differences by race is suspect at best, especially because it is unclear that one can accurately control for socioeconomic factors. 3. It wou…
That said, there are a few points I feel need to be made:
1. Your first argument is an insidious form of the "slippery slope" argument, in effect if not by intent. Just because individual difference eclipse racial ones doesn't mean we can't explore the latter. Just as the handicapped are protected by law in civilized countries, so too can racial minorities, even if it were proven that they are less intelligent.
2. The motives of the original poster are irrelevant. He can be both racist and correct, as unpalatable as that thought may be. The subject is that of scholarly discussion, and what you're doing, knowingly or not, is lowering the discourse by imposing guilt by association.
Before I'm accused of pedantry, I think these two points are critical because in my experience there are two forms of racism:
1. Die-hard, ideological racism, i.e.: "there is a hierarchy of races and the lower strata barely qualify as human".
2. Racism born out of frustration. I find that the overwhelming majority of racists end up identifying as such because they raise valid concerns about (typically Black) culture, demographics and crime, but find their honest (if not valid) points rebuffed with ad hominem attacks. In the end, these people end up saying "Fine. I'm racist. I also have a point."
If we're going to have an honest discussion about race then we need to stop plugging our ears and chanting "racist!" Much of the reasoning behind "Type II" racism is flawed, but it's much more productive to calmly explain why this is the case, than to respond with a knee-jerk "that's racist and therefore wrong". Contentious though it may be, there are many criminal, academic and sociological problems that fall along racial lines, and we need to be able to criticize racial groups in order to move forwards. Denying this, or vilifying those who are frustrated by this state of affairs, creates racists.
If I can't say something to the effect of "[Insert Race Here] generally does [insert thing here] and I think it's a problem because [...]", then we're not having a scholarly discussion; we're having a circle-jerk.