The idea of transatlantic crossing in a primitive coastal boat from a culture which is not heavily maritime is already veeeeeeery farfetched, although it is theoretically possible. The idea that this group could make it across intact and with enough goods to have any effect on the new world is even more outrageously unlikely.
Gem Hound's examples 1 and 3 are both highly unlikely to be real, and Polynesians are a dedicated maritime culture, and potential transpacific contacts happened through island hopping, and several millennia later than our present time in this NES.
Gem Hound's examples 1 and 3 are both highly unlikely to be real, and Polynesians are a dedicated maritime culture, and potential transpacific contacts happened through island hopping, and several millennia later than our present time in this NES.