Secondly, it doesn't make that point because, as you point out yourself, the truth in this case is that there doesn't appear to be a link between race and intelligence.

Um, the particular argument MTGandP makes doesn't provide much evidence of a link between race and intelligence. There is definitely other evidence for a link, such as the fact that just about any proxy measure of intelligence, from SAT scores, to results of IQ tests, to crime rates, will correlate with race.

Of course, that still leaves the question of whether this is genetic or cultural. Here I haven't seen much evidence either way so there's still a reasonable chance that it's genetic.