Note, it’s the professors of education that are the problem. Teachers College at Columbia is the problem. They are committed to progressive theory and the ghost of John Dewey.
Yes, though the damned Dewey and his followers ARE, indeed ensconced In Columbia Teacher's, this crap did NOT pick up much steam until after I finished all of my schooling, for which I am extremely grateful! Likewise, it really hadn't thoroughly infected ALL schools ( though it had begun to and colleges were getting quite bad ), when my progeny was going thorough all levels of school.
By the late '20s/'30s, only some out there/way out PRIVATE day schools were infected with this crap ( as well as with moronic Rousesauian garbage and other such insanity ) and no, colleges and universities were NOT and weren't until the late '60s.
And now, you've learned a even more concise, short version of my "nopardon's style Cliff's Notes" of the history of American education. :-)