Anthropology is indeed an interesting subject: the origins of man, the genetic heritage, and the cultural divisions.
Unfortunately, many, if not most of these forums about human "diversity" on the web are quickly overtaken by Nazis or extreme nationalists, who give their own distorted version of science.
Not long ago, I logged onto a forum about the origins of Ural-Altaic peoples, and a large number of messages also seemed to be written by rather extreme Turkish nationalists.
It's a pity, but many extremists hide behind the science of anthropology and pretend to pass as serious scientists.