I’ve studied the Indian Wars for decades; it has been a passion of mine ever since I was a kid.
The Indians were sadistic savages, towards other tribes and towards the hated Americans and the utterly despised Mexicans. The Indians reveled in the torture and debasement of captives; they saw it as entertainment.
If you ever have a chance, read “The Wild Frontier” by William M. Osborn. It will put to rest any fiction about “the Noble Red Man.”
I did a Bible study a while back and the Biblical consequence for nationally legalized child sacrifice is invasion and conquest. I’ve seen a couple of references to human sacrifice in Ohio and Louisiana. In your studies, have their been references to human sacrifice, besides just being entertainment or snacks?