Beyond history, isn't she missing the fact that if whites (in her culture frame) are seen as better at math, it's because of the systemic issues of racism and poverty that show as an achievement gap across the board (the disparity is not math specific)? And that race as a social construct goes back to around the 1500s-1600s, after the history of maths you all have recounted above?
Deal with racism and poverty, don't just give everyone a pass and decide math shouldn't be required because some people don't think it has value in life (or don't understand where its value lies, much less its potential). Math education is different when taught by teachers (and supported by others) who appreciate its beauty and encourage kids rather than let them fall into the 'math is hard/boring/sucks' trap.
