It'd be just as silly for Americans of European descent to go over to Europe and insist they have some kind of rights over there. Maybe I'll go to Ireland and try that.
What? For Indians to declare the land they lived on theirs instead of ours? I'm Cherokee/Scotch/Irish(as many are in the Western half of NC) and I don't think it's unreasonable considering union soldiers forced some of my ancestors to march halfway across the nation and the other half they burned their houses down while they were defending them