More culturaly bias panflets It´s very tempting for europeans and north americans to idialize "exotic" cultures.
I'm chilean, like most chilean, I'm from mixed spanish and native heritage. But our culture is not native. It has native elements that survive in day to day meals, names, etc. But is mostly spanish (language, clothing, education, religion, etc.)
There is now a very serious conflict in the region of the country depicted in the movie. Most of it due to narco/ethninc/extreme left bands. What started as legitimate politcal movements 30 years ago, to obtain political and social improvments for their people, has transform into mostly crimminal assocition involved in drugs, arms trafficking and also kidnapping and murder.
Most mapuche killings involve other mapuche people of rival gangs. It's a very sad and violent situation. It's a poor region, and all the criminal activities don't allow the government (current, a very left coalition, or previous ones, moderate left or right governments, to do much improvement).
This type of movies perpetuate a "first world" view of other countries, where this "pure and innocent" native culture should be left like human zoos.