Read the comments in the original article, and see if you can spot them.

That said, the ability of humans to evolve culturally, and not just physically, is the main reason we thrive in so many environments. The humans living in the Arctic discarded forever all those ways of life they needed when they lived in a warm environment. Chinese culture, Swedish culture, Inuit culture, Polynesian culture ... the list goes on for miles. None of them are living the way their ancestors did before they entered that environment. A way of life is a tool of survival, and when it stops being useful, humans leave it behind for the same reasons whales left legs behind, only a lot faster. This ability is our species' greatest strength.

There is nothing inherently valuable about a culture, except as a learning tool to teach us how one particular environment was dealt with by our adaptable species. Thousands of cultures went by the wayside long before there were academics to study them, and we only know about some of them at all through the remains of ancient arts and technologies.

Let these Amazonian people and their children make their own choices about their futures. Nobody should try to force them to discard their own culture (as has often happened), but nobody should force them to remain in it, either. I only wish there was some way to inoculate them against diseases quietly from the air.