Given all the raping, enslaving, pillaging, and general genociding europeans did upon arrival to North America I don’t think we can say it was the First Nations that were “primitive”
The local tribes were mostly one of two types, the nomadic (ex. Comanche) and the agricultural (Apache). The former would often raid the latter, killing many of the men and taking the women and children --often, but not always, they'd end up being their slaves. So the behavior of the Europeans you describe of the time was not out of the ordinary for the locals.
The local tribes were mostly one of two types, the nomadic (ex. Comanche) and the agricultural (Apache). The former would often raid the latter, killing many of the men and taking the women and children --often, but not always, they'd end up being their slaves. So the behavior of the Europeans you describe of the time was not out of the ordinary for the locals.