There are often arguments, that indigenous people need to be removed in order to balance nature back out. It is true that in some wilderness areas, so called indigenous people have moved into wilderness areas within the last 50 years. These people should not be called indigenous or be given rights over the land that their parents seized.
On the other hand, there are tribes in the Amazonian rainforest (as in the Congo and other rainforests) that have lived largely identical lives for 5000 years. Whats more, there is little evidence of damage to the ecosystem throughout the fossil record.
We need to be careful, as we try to protect these wild areas, There is a big difference between modern humans moving into the forest and clearing land for crops, and indigenous people who have lived in harmony with the forest for millenia.
Chimpanzees and bonobos look very similar to the untrained eye. Indeed, in the past it was not uncommon for them to be housed together, at least until the keeper saw the bonobo getting beaten over and over again.