Generational memory doesn’t last that long, but it’s probably dropped from white people’s minds because they’re the class that rules education, and they resist any mention of this kind of thing in education, and even promotes home schooling to avoid it.
They also don’t believe that any of these groups is 'Murican as them (including Native Americans), so there’s that, too.
That “Killers of the Flower Moon” book is a yet another reminder of what some white people have done/will do to those others they see as lesser beings, if they think they can get away with it: not only try to make them white or separate them from their families, but kill them if it makes the white people “feel better” in some way.
Horror nonfiction: