That argument has been made many times and in great detail. See for instance the work of Diane Ravitch, former US Assistant Secretary of Education (https://en.m

That argument has been made many times and in great detail. See for instance the work of Diane Ravitch, former US Assistant Secretary of Education (https://en.m.wikipedia.org/wiki/Diane_Ravitch https://en.m.wikipedia.org/wiki/Diane_Ravitch) Edit: she was Assistant Secretary, not Secretary