No, I wouldn’t say genetics. Instead I’d say family and drive. Asian kids are often pushed, or push themselves without mercy. They bring home a B and are asked why it isn’t an A. They bring home 95% and are asked why not 100%. The entire family has high expectations and the time and effort is put into ensuring results.
It takes a family unit to push this way.
Groups with high IQs create cultures that encourage hard work and accomplishment. People act as if culture is just something floating around in the air, like clouds. Asians lucked out and a good cultural cloud descended on them. Others weren’t so lucky and a bad cultural cloud descended on them.
In fact, the gaps in performance between racial groups in America is replicated everywhere. Is there a place on earth where East Asians are notorious for churning out large numbers of fatherless kids, ending up on welfare, and failing on college entrance exams? East Asians have a good culture because they created a good culture, and they created a good culture because they have high average IQs.