I thought that this long video is a very good critique of Postmodernism, until the end when he brought up race and IQ, which is one of his favorite topics. I think that the following video is a very good counter to this prejudice: https://www.youtube.com/watch?v=tE9jiPyLYZA
In response to Stefan Molyneux's video I wrote the following:
I would love to share this extremely good presentation, but the moment you bring up race and IQ you make it unpresentable, because others will dismiss you as a racist. In fact, claiming that one ethnic group on average is significantly smarter than another is still racism. David Duke said the same thing. Like you, David Duke said that he was for European culture. Where is the difference between the two of you?
You may think that this is based on sound science, but there are many reasons to think that this is questionable. https://www.youtube.com/watch?v=tE9jiPyLYZA Even if you could refute some of the things in this video, I think that we can't adequately test for culture and environment. It may never be clear, or maybe it will more clear in 50 years, because as people rise out of poverty some or even all of the discrepancies will disappear, which is shown by the Flynn Effect.
Because of this, we put too much faith in IQ scores. It is true that IQ scores are a great predictor of success, but we have a chicken and egg problem. Successful people produce environments for their children that lead to financial and academic success. They instill ambition and work ethic in their children, which by itself might account for the higher scores by Asians and Jews. Environment and values will affect IQ scores.