This is an interesting debate between leftist anti-racist Tim Wise and race-realist/white nationalist Jared Taylor. This discussion covers most of the standard issues and arguments involved in these kinds of debates.
I would suggest that these questions are largely irrelevant to the question of anarchist political theory generally, or the pan-anarchist, pan-secessionist, and pan-decentralist approach to anarchist that is advanced by ATS. Regardless of what one’s views on the science or sociology of race actually are, there is nothing in anarchist political theory that would justify racial oppression irrespective of claims of IQ or other differences among racial and ethnic groups, nor is there anything in anarchist political theory that would justify abrogating liberal Enlightenment principles in the name of anti-racist ideologies.
An analogy might be made to religion. Whatever one’s theological views, there is nothing in anarchist political theory that would legitimize a political theocracy in the vein of Saudi Arabia, nor is there anything that would justify a Jacobin-like or Communist-like persecution of religion.