“Teachers couldn’t teach what they hadn’t been exposed to, innocently training for an actual job rather than having the luxury of homeschooling their own children.”
This is why people like Bill Ayers went into indoctrinating teachers.
The Left called him a respected educator, by which those not sipping the koolaid will mean indoctrinator.
But as the OP sets out it was hardly new. Consider Dodd’s School of Darkness, available in PDF form online, which is an autobiographical account of a woman who departed from the communists.
Early on in the book we see how, in the form of a teacher she unwisely respected, how easy it is for a teacher to manipulate a student. If you read it consider that if the young girl had had a better grounding in the Faith she might have responded that there is a time and a place to everything under heaven to the teacher’s asking, IIRC, if Mideveal monasticism was something a girl of her age and era should be interested in. She could have escaped, maybe not entirely, but somewhat, that teacher’s baleful influences.
paging savagesusie ...
In Europe pragmatism was merely one element of the post-Kantian trend. In America it took the form of a detailed, comprehensive philosophy. Man cannot know facts that exist "antecedent to the mind". Reality is a Heraclitean flux, unfinished and ready to be constructed and created. The job of the mind is to shape, mold, construct, create, and change reality. That means that there are no absolutes, there is no universal truth, the operative standard is feelings, and so anythng goes.