Brimelow points out that teacher unions are a monopoly on top of a monopoly on top of a monopoly, and argues that public-sector unions, unthinkable even to the likes of George Meany and FDR, "are simply not a sustainable life form."
Eventually, the rest of society figures out that it’s being attacked by a rent-seeking parasite and does something about it. ... The Teacher Trust is ultimately defending a system that cannot work: the socialized provision of education. The Soviet Union had the same problem. And absolutely no one expected it to collapse—but it did.