Maggie's Farm

That's the 2008 book by Charles Murray.

I pretty much agree with everything in it. From the blurb:

Ability varies. Children differ in their ability to learn academic material. Doing our best for every child requires, above all else, that we embrace that simplest of truths. America’s educational system does its best to ignore it.

Half of the children are below average. Many children cannot learn more than rudimentary reading and math. Real Education reviews what we know about the limits of what schools can do and the results of four decades of policies that require schools to divert huge resources to unattainable goals.

Too many people are going to college. Almost everyone should get training beyond high school, but the number of students who want, need, or can profit from four years of residential education at the college level is a fraction of the number of young people who are struggling to get a degree. We have set up a standard known as the BA, stripped it of its traditional content, and made it an artificial job qualification. Then we stigmatize everyone who doesn’t get one. For most of America’s young people, today’s college system is a punishing anachronism.