PC doody. I am sure the Indians had some interesting customs and ideas. But this person has never heard of the Enlightenment and its luminaries, John Locke, whose writings were the basis for the Declaration of Independence; Voltaire, paging Voltaire, freedom of speech was his idea; Montesquieu, whose insights basically framed the Constitution. The Founding Fathers were well schooled in the thinking of the Enlightenment and familiar with those thinkers. Any input the Iroquois might have had would be secondary or tertiary to concepts of the European Enlightenment.
I agree with your general thesis