@kierkegaank Exactly. Hitler, another eugenicist, admired the US's treatment of Indigenous people, and used reservations as a model for his camps.
Also BQ makes more sense once you understand that the US created it to measure how many acres of stolen land the US would give back to Natives.
A "full blood" gets X acres, a "half blood" gets .5X acres, and so forth. So if they could "breed the Indian out" of us, a goal they didn't even really hide, they could erase Native land rights. With math!