Jews were motived to achieve because they were oppressed.

How do Indian low castes do compared to higher castes in the same country? They often continue to suffer from discrimination from higher castes in the west. I can believe they do better than some other groups, but how to they compare to higher caste Indians?

I don’t know about low caste indians, but a good data point might be vietnamese. They are generally looked down on by other east asians. Their poverty rate in 1980 was higher than among black people. Today (where 60% are still foreign born) their median income and poverty rate is right around the national average, about 10% behind white americans.