I read in Arthur Custance's "Doorway Papers" that he considers Father Sin the ancestor of the Chinese. What do?

Father Sin is ancestor of Sinites (founders of the Tell Siyannu city-state on the Mediterranean shores of Syria, and also of the Chinese): honestly I only found a few references to Father Sin on the internet, that's why I need your opinion. Arthur Custance considers Father Sin to have been a major legislator in the ancient world (IIIrd millennium BC) in Mesopotamia, Syria, Sinai Peninsula (which apparently bears his name). Custance suggests Father Sin finally got to China (to Siangfu, Shensi province) with a group of his descendants and there founded the Chinese civilization. The name Sin seems to frequently occur in China (and not only in reference to Qin dynasty like commonly umed), which to me seems to suggest that the Chinese are derived from him: Chinese (and not only them of course) had the tendency to worship their ancestors, which would explain why this name occurs so often in China in records both ancient and present.