Honestly if Europeans never came to the Americas there would not be losses of up to 98% of the indigenous population (depending on location). Even if disease "accidentally" killed 80%, the rest were murdered due to greed and evil.

Those events have been well documented, unlike the "rarely kept records" in your previous comment:

https://en.wikipedia.org/wiki/Genocide_of_indigenous_peoples...

After the Europeans could not find enough surviving Native Americans to enslave, they went to Africa next to start another round of cruelty. There is no honest comparison to be made between warring tribes and European conquest.