On The New Archaeology in the Americas

"Anthropological hypotheses based on migration and interaction were deposed in much the same way they came into vogue, with a massive backlash ending in a temporary ban on their application in archaeological explanations." - Polynesians in America, Chapter 2, pp 14.

And so we continue with the politics of colonialism, with the continuation of the destruction of the history and identity of indigenous peoples. 

From the Spanish conquest forward, the western European conquerors have systematically eradicated the histories kept by Native Americans. This has been done in the name of promoting whichever European paradigm of the prehistory of the Americas was popular at the time. Archaeologists have been charged with selecting evidence from the material remains to support the then-current paradigm. Skeptics have been charged with debunking, discrediting and, perhaps, even destroying evidence which does not seem to support the then-current paradigm.

A prize granted to conquerors by that very act is the license to write the histories. Rarely do conquerors suffer historians to cast them in anything but an heroic light  Likewise, the integration of conquered peoples into the new order proceeds most smoothly if the slate of their former life and culture is wiped clean. To that end, existing histories of conquered peoples are expunged. This is why anthropologists and archaeologists discourage the study of cultural history. Conquered peoples are encouraged to suppose that their ancestors just sprouted in situ, with no antecedents of significance.

In the case of the Americas, it seems to be that cultural historical evidences (which have so far escaped the skeptical ax) point mostly to places in the eastern hemisphere which are NOT in western Europe. This is also something that the western European conquerors don't care to advertise. One western European locale that does frequently pop up is (God help us!) Ireland. Imagine how popular THAT is with the British!