Surprisingly I enjoyed the video. When Amy Chua said successful cultural groups are insecure, I took that to mean that they do not rest on their laurels. They keep striving to do better.
Both of the show hosts are from immigrant families so they actually know what they are talking about (for a change). Ana's parents are from Armenia and Cenk came to the US from Turkey when he was eight. They were right when they said that if the barrier to enter a country is high, the immigrant will end up doing well. I've noticed that many successful groups tend to isolate, to some extent, from the culture at large which maintains their cultural values. The two religious groups are a good example.
Jews and Mormons are very small religious groups that are seen as different. Both groups value education and require years of religious study and going above and beyond to maintain the continuation of the faith. Seventh Day Adventist is another small, different, and successful group. They have their own universities, including an HBCU, hospitals, and a renowned medical school, Loma Linda. Jehovah's Witnesses are small and different but not very successful. They don't place value on education or mainstream success. Witnesses were/are discouraged from attending college and their Watch Tower material is written on a fourth-grade level.
In her Tiger Mother book, Amy Chua mentioned both Nigerians and Jamaicans as tiger parents. I think Chua and her husband made up the list of eight groups just to be controversial and get people talking.
*I recommend Chua's book World On Fire. It discusses successful ethnic minority groups in different countries.