The vast majority of Native American death during the period of European colonization was due to disease. It was inevitable, it would have happened no matter what the circumstances. Because the people of the American landmass were separated totally from the Eurasian-African sphere, they were doomed. As soon as the Native Americans came into contact with peoples from across the Atlantic or Pacific, the microbes they encountered would have wiped them out. Even if the Native Americans sailed from the Aztec Empire to Cadiz, and conquered Spain, they would have been doomed, like “War of the Worlds”. The only way the people of the Americas could have been saved is if human technology never advanced beyond the 9th Century.
The term “Native American” is a misnomer. Unless at the creation of man, there was a second group created in America, everyone here is a transplant...everyone. Even the Indians (won’t call them Native, sorry). Thus, those Indians, many of whom were brutally cruel to other Indian types, who themselves were localized to certain area get little sympathy from me. And, they would have encountered “microbes” from animals as the viruses morphed into other forms.
And, think about it, we are not allowed to roam free and take any animal, plant or rock that we want. Tough beans, grow up. My ancestors suffered greatly in Holland and no one is crying for their losses.