I'm really not sure what argument you are trying to make with that article.

Beyond the fact that you responded to a comment on Canadian wages with an article about the U.S., I'm not even sure what the article you quoted is trying to say in U.S. terms.  Basically it seems to be lamented the "good ol' days" of rebuilding the world after a massive war destroyed half of it and cost millions of lives.

I notice that the author carefully ignored the impact of WWII when discussing the post-WWII economic boom.  He also ignored the fact that the developed world operated on a de facto gold standard by virtue of the Bretton Woods Monetary System.

He might have been able to make a point about access to education because clearly that is a problem in the U.S. (and potentially in Canada going forward, though to a much smaller degree) though he didn't really expand on that.