Pure Modernity, circa 1870s -1960s : winnowing Life's answers, keeping the correct and discarding the wrong

Lets face it, if you already know the correct answers to all of the Future's questions, why keep the wrong answers hanging about ?

Pure Modernity's silos of specialization and speciation : Aryan & Jew, Political Science & Economics, Professional & Laity

Panic-stricken wealthy educated Victorian era humanity invented Pure Modernity (a counter-revolution against impure reality) with its rigidly separated silos of pure races, pure breeds, pure nations, pure species, pure food & water, pure professions and pure academic disciplines, all in the same day.

Nay, all in the same afternoon....