It's a fact that this revisionist pre-Maori "theory" has been eagerly taken up by the racist white-supremacist movement in NZ in order to disenfranchise the native peoples by questioning the legitimacy of their right of ownership.
It's also a fact that absolutely no evidence has been found to confirm that the Maori were not the first settlers in NZ, actually the evidence points to exactly the opposite (e.g. DNA and pollen analysis).
It's worth reading this discussion (surprisingly!) on the New Zealand Conservative website. Here's a snippet:
"I suppose no one is forcing you or anyone else to believe archaeologists or the current consensus, but it just seems really weird to me that people will choose to believe an untrained guy who doesn't even understand the basics of archaeology, or early, outdated and since proven false hypotheses put forward by one or two historians, over the unanimous support of the current consensus by people trained in archaeology and related fields." Hear, hear.
And this article on the New Zealand Archaeological Association Website.
I'll just reiterate - please don't listen to the Nazis, they have their own despicable agenda.
Something is not right. This message is just to keep things from messing up down the road