Earlier quoted context omitted.
SAT math is geometry,a 10th grade class for average students. Scoring below 700 isn't due to lack of "push" it's lack of some combination of intelligence, nurture, health, teaching. Due to the cost and complexity of transcontinental migration, most Asians in US now, and Jews last generation, come from elites from their previous family homeland who successfully migrated to escape bad government or seeking greater oppo…
It's not clear if you're trying to contest with the parent or agree with him, but you are doing the latter.
Not necessarily. If intelligence is genetic, then by OP's hypothesis, immigrants are more likely to be intelligent and pass that on to their children - whereas GP's hypothesis (seems to suggest) that intelligence is effectively random but determination is what's passed down from parent to child. Of course, it's probably a combination of both.