I find this fascinating. A recent paper (Population Genomics of Stone Age Eurasia, May 2022) involving the genetics of the Proto-IndoEuropean expansion of the Yamnaya across Europe and Asia shows a great ferment of people that prefaces the time of the claimed Maori precursors. There certainly was conflict between light and dark skinned peoples at the time in India, as well as across Eurasia, as the pastoral Yamnaya and corded ware culture that came from it used the recently invented dairy technology as an economic springboard launching them into conflicts in all directions.
Another paper (Shinde et al, 2019) on the origin of the Harappan people sheds light on the ferment of the time. Discussion of the paper is almost more informative than the paper, which you can read here. The drying up of the Sarasvati River and subsequent desertification of the region dramatically altered the economic base thereabouts.
I also note the divergence between Polynesian peoples and their heretofore presumed progenitors in Melanesia. There is a very distinct phenotype in Melanesia, Papua, Australia, and the Negritoes of the Phillipines that simply isn't found in Polynesia.
I am only able to have a look at the first few minutes of the video right now, as I am called away to a roof that needs me, but I will - and greatly anticipate - watch the full video. I am aware of archaeological remains that are claimed to have been found of pre-Maori people in NZ, that the researchers are handling with great discretion because of the political hand grenade that evidence is. It will have to suffice presently for me to say there is considerable evidentiary basis for claims that the original people in New Zealand didn't get there from Taiwan, as I have gleaned from the video so far.
Anyway, thanks very much for stirring the fermenting prehistorical evidence bubbling in my potted brain!