> we can't keep litigating the past forever
It's worth pointing out this reasoning is usually considered self-evident. I've rarely seen anyone doing any kind of deepdive into a practical reason for this.
As a parent of young children it rarely makes sense to litigate anything that happened more than 10 minutes ago, so perhaps people extrapolate from there :-) I'd enjoy that deep dive, though.
I mean, there are very valid reasons behind it.
People are not expected to hold onto there documents forever, humans forget.. and change
Figuring out what happened 3 years ago is hard, figuring out what happened 30 years ago is near impossible & often wrong
There are only two broad outcomes, either things stay as they are, or much of the US is returned any remaining descendents of various treaty signatories.
The first is effectively a waste of time, the second a messy descent into hell on all sides.