Ummm... When they talk about Kennewick Man possibly being "European" (which is most likely not even accurate in any way - most believe him to be of asian heritage in some manner) they mean PREHISTORIC - meaning he would have absolutely ZERO linkage with those who came here post-Columbus... But, you get an A for effort in muddying the waters ;0)
Now, also keep in mind that the government does NOT take money from our paychecks and turn it over to the indians, but you can keep believing that if it helps you to sleep at night... Probably 90% of the money tribes get "from the government" comes actually from businesses who lease indian land, and pay royalties to the tribes for natural resources etc... However, the businesses pay the money to the government, who then doles it out (and skim billions off the top first) because we indians are too stupid to manage our own money and our own business affairs, apparently... Some money is spent on federally-run schools and federally-run health care, but both are mismanaged and basically a joke - bit then, the government does the same thing in other economically-depressed areas, regardless of race...
I suggest (and I mean this in the nicest way possible) that you actually research the facts about Indians BEFOE talking about them. It helps alot. :0)
What could possibly define "heritage", other than racial origin? Racial origin would be the only thing you could subsatantiate. Cultural "heritage" is too nebulous to stand up to any sort of test; anyone can adopt cultural behavior. So, if Kennewick Man and the Europeans of today share a common racial origin, that would be all that would be possible, or necessary, to provide proof of common "heritage", if the matter were in dispute.
The Government entitlements which Indians receive are entirely race-based; they have nothing to do with economic status.
Actually, I'm curious - what does one have to do to prove one is "Indian" enough to receive the Federally run health care?