Well, to be contrarian, I'd argue that indigenous genocide was the original sin of the colonists, English, French, and Spanish, but not of the United States, who of course continued and expanded the pain and death upon the indigenous populations, but again, in this citizens opinion is Slavery, which not only caused so much pain, suffering and death it visited upon the Africans stolen from their homes, and their descendants, forced to work until they fell down dead, but was the root cause of the united states only civil war to date, yet still, rightfully, informs the American political sphere, whose civil right successes the white supremacists continue to fight so hard against, and why were seeing the continuation of the same racist policies seeking to dismantle the entire democratic experiment at it's core