Earlier quoted context omitted.
Is that true? I've read that 90+% of the population died from diseases, the vast majority without ever knowing about the European conquerors (that is, they never saw a gun). Imagine if 90% of the people in your nearest city died. How difficult would it be for a new group, immune to whatever killed almost everyone in the city, to move in and take over?
I've always wondered why this wasn't a two-way street. Wouldn't native people also have diseases to share? I know the imperialists weaponized their diseases and intentionally tried to spread it and that may be the difference. Usually the smallpox theory is presented in a way that removes agency and culpability from the conquerers. It's always struck me as remarkably convenient and quite unbelievable; they were an idy…
https://www.youtube.com/watch?v=JEYh5WACqEk
In short, you need cities to develop these types of viruses. Cities where the virus can just keep killing, without ever hitting a dead end.