Pay back for stealing their land.
Then I guess the "African-American" folks have an equally valid claim - after all,their ancestors were captured and forced to the Americas for slave labor...
And let's not even broach the fact that some of the same-said "tribes" willingly SOLD their land. Seller's remorse is a reason for reparations too???
Where do we draw the line? After all, folks can have their property today taken away by edict with less-than-fair value paid - in the "interest of development"....