I’m simply trying to highlight that what happened to the native Americans is not simply “an aside,” or a footnote in history but that it should take a sharp focus to what the US is or has been. This isn’t about competing special interest group atrocities, but a fundamental question that is at the core of representative democracy. Too often liberal democracy is simply another way to exploit others, and disallow “other” groups from participating.
From a native perspective, living on a reservation in the US currently, it wouldn’t matter much if it was run by republicans or democrats, as they both simply ignore treaties and obligations. From your perspective, it’s a dire existential crises, but to those who have been swept aside both in the past and the present, it doesn’t matter much at all.