More HBD lies.
After 4,000 years of absorbing border tribes and enduring long partial or total conquest and occupation by Turks, Tibetans, Mongols, Manchus, Iranians, etc., any match between the self-identifying Han population of China and the concept of biological race is problematic.
Not problematic at all. Despite some degree of genetic differentiation among the Han Chinese (primarily along a north/south axis, which seems to be a common theme among large population pools, including Europeans), on a global racial basis, as you can see here, there’s no doubt that the Han are East Asian, akin to Japanese and Koreans.
As to why Derbyshire constantly spouts and/or implies falsehoods:
1) He’s an HBDer and HBD is pseudoscientific fraud, lies incompatible with real racial science.
2) It probably also has to do with his pro-miscegenation attitudes, and his constant attempts to normalize his racially mixed family.
Despite our conflicts and disagreements on other issues, Europeans and East Asians can agree that Derbyshire’s lies and agendas need to be rejected and opposed.