The distinction between past and present crimes is noticeable, Hauta. On the other hand, I'm not sure what concession you're offering to the difference between crimes committed 100 years ago and crimes *not* committed 100 years ago. It's easy enough to say we should just leave the past in the past and do the best we can from now on, but it's all but impossible to understand what is happening in the present and how best to proceed in the future without confronting the legacy of the past.
For example, since the US historically did a lot of shit to destroy Native American culture (and still does to a lesser extent), maybe we should be less complacent about telling modern-day Native Americans that they should desert their failing culture, move to NYC, and join our successful culture if they want to succeed. Maybe the extreme poverty on reservations traces back to our government forcing Native Americans onto bad property lacking either arable land or infrastructure, spawning a vicious cycle of underinvestment. Maybe the ongoing sexual assault issues have something to do with Native Americans historically lacking jurisdiction over their own justice system. Maybe understanding the ways we've failed Native Americans, by malice or neglect or mismanagement, helps us understand why the current situation is broken and what it needs for improvement.
It's not necessarily about making direct reparations for past wrongs. But we should at least account for those past wrongs when deciding what is the right thing to do. Otherwise, we aren't meeting the Native Americans where they are, and anything we do will be less effective than it could be.
(You asked earlier in the thread, what about the slippery slope? What about blacks and the legacy of slavery? This is basically the same attitude I take there. I don't understand how people expect to even begin approaching the problems many black Americans face today without understanding the havoc America has historically wrought on black bodies, black families, black businesses, black wealth, and so on. That legacy echoes to this day.
But somehow we can't bring ourselves to think about that because it threatens to open the door to reparations. We're more afraid of the ghost of a possibility that we might have to sacrifice something than we are of the real present-day problems that we make more difficult by being fearful. Of course we are. Those problems happen to other people.)