@roger,
Masks and vaccines are very different, and of course Native American cultures are diverse.
I was reading about the Navajo nation response, a big part of the issue is
informed consent. Of course, consent can't be coerced. In the 1970s forced sterilization was coerced. The worst thing to do is to call unvaccinated people "idiots".
Instead of outrage, there should be outreach, and the acceptance that no matter what you do, people have control over their own bodies and some part of any population will say "no" for their own personal reasons.