As I understand it, most north American indiginous groups had very little concept of realty.
But they did understand war, and the taking of land/territory from one another. The idea that the indians were all kind of peace-loving pacifist hippies is a historical revision.
It will come as news to some people who don't read anything published earlier than the 1960's, but many indian tribes were proud warriors, and routinely fought and conquered other tribes.
There were also indian tribes that were shunned (for example, the Karankowa (sp?) in Texas who were known for being cannibals), and those who were considered backwater misfits (for example, Moapa Paiute).
The indian tribes were much more interesting and varied than modern history teaches.
I did not call them peace loving or non-violent. I said they had no concept of land ownership. You are making my point for me - though condescendingly and with a source that is somewhat rambling and obtuse.
Of course they were violent and murderous: they are human beings. They did not, however, commit genocide in the pursuit of property.