In the late 1970s, Lynn wrote that he found the average IQ of the Japanese to be 106.6, and that of Chinese people living in Singapore to be 110.[47

So the Chinese IQ was entirely based on the Chinese citizens of Singapore. So the Chinese SES doesn't come into play here.

Many scientists have criticised Lynn's work on racial and national differences in intelligencefor lacking scientific rigour, misrepresenting data, and for promoting a racialist political agenda.[

So the very base of your argument is desputed.

The datum that Lynn and Vanhanen used for the lowest IQ estimate, Equatorial Guinea, was taken from a group of children in a home for the developmentally disabled in Spain.[100]

What do you say about the this? The very tests were biased in the first place. So Africas current IQ might higher than results recorded in Flynns studies. So there might be no 30 point difference at all.

Kamin also reproached Lynn for concocting IQ values from test scores that have no correlation to IQ.[102] Kamin also notes that Lynn excluded a study that found no difference in white and black performance, and ignored the results of a study which showed black scores were higher than white scores.[103]

WHAT ABOUT THIS NOW? Are these facts?