He came from an era that was enthralled with progressive/lefty/collectivist/Marxist/socialist/communist/murderers and their ways. The Bismarckian theory of education and citizenry would not make it amongst critical thinkers but those progressive/lefty/collectivist/Marxist/socialist/communist/murderers love it to supplant the excellent education the American children were getting from their parents and the market. Mann was a total tool!