No one claimed any "noble savage" beliefs, and the "myth of the noble savage" is itself a myth.  As far as Native people being some of the "worse" (sic) for killing themselves (I think you mean each other), history doesn't exactly bear that out, even if they did have conflict and war.  

The force they met was not superior, it was far more violent and genocidal, and that's very different.  For some reason white people keep thinking that greater violence and enacting genocide on MILLIONS of people makes them "superior."   That's a very strange way of thinking for me, and it certainly isn't intellectually or ethically superior.

Why do you think white people were running screaming from Europe to begin with?  Because they were all so brave?  No.  They were fleeing vicious disparity, violence, and a corrupt society that only cared about the wealthy, exactly like they created over here.  I don't think that's superior,  either.  I think it's really messed up.