To be taking AP calc as a freshmen and have access to diff eqs as a junior means she went to an amazing school system. most black people do not have access to that type of education. On top of that she was probably dreaming of going to MIT since she was a 6th grader, which means her parents or other people close to her are very academically inclined and helped got her onto that journey. If your parents don't know how to do calculus or aren't in position to put you in a great school system you can't replicate what this girl did. It takes the perfect storm of nature and nature to be one of the top high school students in the world.
Facts....plus....
We gotta stop comparing self-selected immigrants to large existing native populations.
If Indians as a whole were so perfect, they'd have no reason to move here because they would be able to fix their own country. Nigerians, same thing. The most determined make it here so of course they will outperform everyone.
We MUST do better, but there's a balance. I've seen too many Indian kids force themselves into STEM because that's what they're supposed to do when their natural aptitude lay elsewhere.
For whites, Blacks and Latinos...we can't see the flaws in the system because we were raised by the system. Indians, Chinese, Nigerians etc, have a different perspective looking from the outside, so they know exactly how to take advantage of the strengths of American education while also mitigating the weaknesses (extra prep courses, tutoring etc).