You can't agree with most of it because most of it was basically improvised.
Migration from what is now Russia has tended to be westward from Asia, with Caucasians going eastward being a fairly recent phenomenon, 16th century. Centuries. 16 MILLENIA ago, people were already in the Americas.
Nor do they have any of what would be considered (distinctive) Caucasoid DNA, except maybe some Australoid. Maybe. Certainly not European, at least not prior to the Colonial Era. There may be stories and fanciful claims of various Europeans having arrived here previous to 1492, there may be some scanty evidence that the Vikings actually did settle in Newfoundland for a short time, but there are absolutely no genetic markers verifying such.
If you look at Slavs, pay attention to their eyes, particularly the corners. Some of that came from Genghis Khan & Co, but much is the result of Asians filtering through since long before there were Caucasians in the area.
Also, while individual Native Americans did not own plots of land, groups did. They didn't fight others over territory because it wasn't territory after all.
Not like the concept was entirely new, as we know, not too long before they sailed over here, the ancestors of the colonists themselves were nothing than serfs on land owned by lords and all that owned by the king. Still basically the same thing today. People pay property taxes and their property can be confiscated via eminent domain by the government because the people really don't own property, they're simply renting it out.