Oh, please. He’s blaming the Great Depression on tariffs, rather than rampant speculation on margin. Not history. Ideology. Levin was wrong, wrong, wrong, and cherry-picking history in order to support his error doesn’t change the fact that he was and still is in error.
per dictionary.com
Word Origin and History for Americanism
n.
1781, in reference to words or phrases distinct from British use, coined by John Witherspoon (1723-1794), president of Princeton College, from American + -ism. ( American English “English language as spoken in the United States” is first recorded 1806, in Webster.) Americanism in the patriotic sense “attachment to the U.S.” is attested from 1797, first found in the writings of Thomas Jefferson.