That’s because you don’t know enough history.
Good estimates put the death count of Indigenous Americans at 100 million+.
I wonder who did the estimating and what their agenda might be?
How did they come up with the numbers?
Not that it really matters, once you go over one, to those being killed, the number is too high.
If your estimates are "good", then you must have valid, reilable data sources.
If so, please share them.
TXnMA