How is it my fault (as someone who "can do math") that someone else can't/won't do math? What do you believe I am morally obligated to do that I'm not doing with regard to someone else's preference/understanding of mathematics?
That's mainly directed at the person who wrote the essay (a math professor) and others like him who blame the students rather than themselves. I think he should be examining the state of math education in this country rather than chastizing the people it has failed.