While the Aztecs were brutal, they were just one tribe. The population of the New World dropped from hundreds of millions to only tens of millions in a few centuries... that's how thorough the European Genocide was.
That had absolutely NOTHING to do with anything the Europeans consciously did.
You probably really are this dumb, aren't you?
Upon first contact, the diseases that Europeans carried, quickly swept through the New World, like the plague had swept through the old world centuries before, wiping out well over half the population.
This, then caused societal breakdown among the civilization of the New World. You have no idea who you are talking to. I did my major in Anthropology, I know more about this, than you can possibly imagine.
If you think there is a qualitative difference between different peoples or different civilizations? YOU ARE BRAINWASHED.
Of course, the Europeans then took full advantage of the decimated populations to enslave, and make war upon what little was left of those societies, but if you think that if the shoe were on the other foot, things would have been any different? You don't know shit about Native American societies or the wars they fought against each other.
Massive Population Drop Found for Native Americans, DNA Shows
Genetic data supports accounts of decline following European contact.
Indigenous populations quickly dropped by roughly half following European contact about 500 years ago, a new DNA study says.
web.archive.org
". . . Based on the data, the team estimates that the Native American population was at an all-time high about 5,000 years ago.
The population then reached a low point about 500 years ago—only a few years after Christopher Columbus arrived in the New World and before extensive European colonization began.
Study co-author Brendan O'Fallon, a population geneticist who conducted the research while at the University of Washington in Seattle, speculates that many of the early casualties may have been due to disease, which "would likely have traveled much faster than the European settlers themselves."
For instance, the Franciscan friar Toribio de Benavente—one of the first Spanish missionaries to arrive in the New World in the early 1500s—wrote that Mexico was initially "extremely full of people, and when the smallpox began to attack the Indians, it became so great a pestilence among them ... that in most provinces more than half the population died."
For the layman, so you don't sound so damn ignorant, I recommend you read this book;
Guns, Germs, and Steel
en.wikipedia.org
Or, if you are one of those TEE VEE watchers that hates to read? National Geographic made it into a multi-part documentary, that is pretty O.K. I guess, it isn't as good as the book though. Still, it wouldn't leave you as ignorant as you obviously are.
Here's Part 1 to get you started.