There was most certainly exchange between groups of people in the New World before the arrival of latter day Europeans. There were markets. They were just based on exchange, like Europe before the Renaissance and innumerable other examples. Anyone familiar with economics would know that.
And, to continue your education....so you might actually approach zero knowledge, as opposed to the falsity that you now claim as knowledge....
".... a close relationship existed, both historically and geographically, between
the development of private rights in land and the development of the commercial fur trade.
...the role played by property right adjustments in taking account of what economists have often cited as an example of an externality-the overhunting of game.
Before the fur trade became established, hunting was carried on primarily for purposes of food and the relatively few furs that were required for the hunter's family. The externality was clearly present.
Hunting could be practiced freely and was carried on without assessing its impact on other hunters. ...it did not pay for anyone to take them into account.
There did not exist anything resembling private ownership in land accounts indicate a socioeconomic organization in which private rights to land are not well developed.
.... the advent of the fur trade had two immediate consequences. First, the value of furs to the Indians was increased considerably. Second, and as a result, the scale of hunting activity rose sharply.
The property right system began to change, and it changed specifically in the direction required to take account of the economic effects made important by the fur trade.
....the higher commercial value of fur-bearing forest animals, made it productive to establish private hunting lands. ...family proprietorship among the Indians of the Peninsula included retaliation against trespass. Animal resources were husbanded. Sometimes conservation practices were carried on extensively. Family hunting territories were divided into quarters. Each year the family hunted in a different quarter in rotation, leaving a tract in the center as a sort of bank, not to be hunted over unless forced to do so by a shortage in the regular tract.
...highly developed private family rights to hunting lands had also developed which went so far as to include inheritance."
http://www.econ.ucsb.edu/~tedb/Courses/Ec100C/Readings/Demsetz_Property_Rights.pdf
Hopefully, based on this, you will find yourself less embarrassed in intellectual discussions.
Hopefully.