For more on IQ testing, read up on the Flynn Effect, which has basically proven that IQ scores have been rising EVERYWHERE in the world and among all races and nationalities for the past 100 years! That is why they keep having to modify IQ tests every so often, because they get too easy! A typical teenager today has an IQ of 100. If tested today, schoolchildren during the early 1900s would be considered mentally ill, with IQs in the 70s. It’s fascinating.
Regarding the Sefaradi community, I am sefaradi, I do not live in a sefaradi community, and I find RD’s comments to be quite offensive. The fact that Syrians, as immigrants, have done so well in business should be something to celebrate, not denigrate. If you want to see sefaradic learning, get in touch with the sefaradic semicha program at yu, or go to eretz yisrael and learn in yeshivat porat yosef or kisei rachamim.