Yes this is true, Jews generally do better than gentiles but I thought it was because they came from good homes and had a good education but I can understand that the reason Muslims don’t do as well is because of tribalism.

Muslims were doing excellent at one point in time but after we were divided into countries that’s when we declined massively and now when people say Muslim they don’t think of science or an empire but instead think of some terrorist who wants Muslim countries to unite.

When someone says Jew they automatically think of the rambam or sciences or their influence on the Greeks.

Tribalism is a huge issue in Islamic countries and the Jews have definitely done better when it comes to that.