Who was the main proponent of "the american system"?

Henry Clay

Congressman Henry Clay was the plan's foremost proponent and the first to refer to it as the "American System".

apartheid, (afrikaans: “apartness”) policy that governed relations between south africa's white minority and nonwhite majority and sanctioned racial segregation and political and economic discrimination against nonwhites. people should not get this wrong. i was just answering a question.

they both built pyramids.