Best summary I've seen yet. Carr is especially depressing in all this because he knows damn good and well what he's doing. He also knows that mathematics is the field both most likely to raise a disadvantaged kid out of poverty and the one easiest to access with limited resources (you don't need a chemistry lab or anything more than youtube, paper, and pencils). To take the side so determined to weaken mathematical education and shake any sense of stability and reliability such people can find in mathematics is reprehensible, and hurts disadvantaged kids the most. Ibram Kendi would call that racist on Carr's part, but nobody cares about that, either.