Hmmm, I don't see the outstanding part of the rebuttal. While it raises real evidence, it doesn't address the elephant of overeducation. The cited countries, for example, are faltering in myriad ways that their electorates have decidedly reacted against; enormous education sold to too many, falling far short of its promises.

Like many of us here, I've been overeducated and I'm against overeducation. "Not letting your education get in the way of your learning" summarizes that view, which I think use to be a tenet of the hacker ethos underlying this forum.