Did the Indians in American history die of plague or massacre?

In fact, Indians died of plague and hunger, not the so-called holocaust.

It turns out that America and Eurasia are separate, separated by the Pacific Ocean and the Atlantic Ocean. Due to the great differences in species between the two continents, Europeans may bring unknown diseases. Although this disease can't be compared with Europeans, it is fatal to Indians. Of course, Europeans may bring diseases such as smallpox and typhoid fever to North America. These diseases are very serious in the European continent and the mortality rate is very high. Because Europeans are immune to these diseases, but Indians in North America are different. They have never suffered from smallpox or typhoid before, so the mortality rate is high.

According to historical records, when the Spanish entered Mexico, they caused great deaths there. 1520 and 1532. In the past two years alone, more than eight million people have died, and the fatality rate is very alarming. Of course, it may not be accurate to say that the death of Indians was entirely due to the plague brought by Europeans. After all, although the death rate of plague is high, many people will survive. So, what happened to the surviving Indians? In fact, most of these Indians died of famine.

The main source of food for Indians is bison in North America. If Europeans don't come, these bison will be enough for Indians to live. However, after Europeans entered America, they occupied a lot of land and established a large number of plantations, which destroyed the local ecosystem and became increasingly unsuitable for bison to survive. Not only that, at that time, because Europeans also brought a large number of guns, Indians began to hunt bison for sale after they had guns. The number of bison is getting less and less, and the food problem is getting more and more serious. Eventually there was a famine, which led to a sharp decline in the number of Indians.