What about the Native Americans massacre

How can these civilizations have heard the word of God ? And why exterminate them as if it was a "God given right" ?

 

Okay so apparently, it's very interesting, some of them sought after the one true God, calling Him "the Great Spirirt" or Wakan Tanka, but even more surprising is that THEY ARE descendents from the 10 tribes of Israel and even knew about Christ ! And in some of their feasts like the feast of love, they sing and repeat several times "Ya Ho Whe" or something similar, an Amerindian version of "Yahweh (YHWH)" the sacred name God gave to the Israelites in the temple during the O.T.

I found those books:
The Ten Tribes of Israel: Or the True History of the North American Indians, Showing that They are the Descendants of These Ten Tribes (1883) -
Timothy R. Jenkins

"Christ is a Native American" also https://books.google.fr/books?id=gY5LAwAAQBAJ&pg=PA47&lpg=PA47&dq=Wakan+Tanka+christ&source=bl&ots=PqMVUk2ALu&sig=ACfU3U3wT6Rkn-gYHXfUR9XPU7r2lUg-1g&hl=fr&sa=X&ved=2ahUKEwjwhcWT0fXpAhUCzhoKHdn2AgUQ6AEwB3oECAYQAQ#v=onepage&q=Wakan Tanka christ&f=false