I understand your frustration, and with kids in public schools, I've experienced it first hand. However, I think it is worth keeping in mind that practices to reduce the achievement gap are not driven by the notion that every child has equal potential.

Let's not forget that differences in environment also contribute to the gap. While my kids do have high IQs, their high level of achievement can be attributed in part to privilege - their basic human needs are met in a comfortable loving home where their every interest is indulged and supported and their every achievement is applauded. It is in the best interests of our society to support kids who are not so lucky to be privileged in the way mine are, so they have the necessary basic skills to have some quality of life as they become adults.