Cultural survival is not about preservation, sequestering indigenous peoples in enclaves like some sort of zoological specimens. Change itself does note destroy a culture. All societies are constantly evolving. Indeed a culture survives when it has enough confidence in its past and enough say in its future to maintain its spirit and essence through all the changes it will inevitably undergo. 
Wade Davis, The Wayfinders: Why Ancient Wisdom Matters in the Modern World
change, culture, evolve, future, past, survival