How many red Indians were killed by immigrants?

The term "red Indians" is considered outdated and offensive; it is more appropriate to refer to Indigenous peoples of the Americas. The impact of European colonization on Indigenous populations was devastating, with millions of Indigenous people dying due to violence, disease, and displacement. Estimates of the death toll vary widely, with some suggesting that up to 90% of the Indigenous population in some areas was lost due to the consequences of colonization. However, exact numbers are difficult to ascertain due to the lack of reliable historical records.