Earlier quoted context omitted.
Internet arguments aside, the fact that certain cultural groups push their children to study hard (and also provide them with as many resources as possible to make sure their studies are fruitful) probably is a big contributor to the disparity illustrated in your table.
It does not seem to have helped non-Jewish whites any, compared to Blacks and Hispanics. I guess it's a very special kind of studiousness whites have - one that helps with SAT scores, but not Ivy League admissions: https://www.brookings.edu/research/race-gaps-in-sat-scores-h...
(Looking at your link, it's important to note that it doesn't separate Jewish and non-Jewish Whites.)