Question

Why are the natives of South American continent called as the red indians

Answer 1

they are called red indians because they are reddish black in colour as they lie close to the equator
mark as brainist and follow

Answer 2

the use of the phrase “merely immigrated to North America first” is code for “I feel good about what we did for manifest destiny” of which I humbly disagree.

“Native” means “born there” by definition and is interchangeable with “indigenous.”