tingdzin wrote:What the OP said is a little bit encouraging, but Tibetan culture is/was far more profound than dress and even the colloquial language(s) spoken there. Tibetan culture, in my view, was one of the only world cultures that had sophisticated intellectual and artistic traditions while simultaneously preserving (even if perhaps by chance) many elements of archaic human culture that had disappeared from most other places in the world. Even if there is not currently a militant approach to stamping out what is left of Tibetan civilization on the part of their Chinese overlords, other factors such as the eradication of the nomadic lifestyle (dictators always hate nomads), the utterly rapacious approach to the exploitation of natural resources (Tibetan culture being intimately tied to its physical environment), and the serene Chinese belief in their own racial and cultural superiority (even though the most valuable aspects of Chinese culture have also disappeared or are disappearing) probably mean that those factors that made Tibet unique are destined for the history books.
As far as I saw, there was no wanton destruction of the environment for extraction of natural resources, at least where I was going. Hydroelectric dams, power lines aren't quite the same thing. This is only within Sichuan of course, there were stories about Chinese prospectors travelling to Central and Western Tibet apparently in search of uranium that I've seen online and I don't know how well that went.
As for the rest, well, no argument about resettlement of nomads. I saw a TED talk by this South African biologist about how large-scale pastoralism could overcome desertification and who recommended large scale government programmes to remedy it. It made me laugh -- the desertifying region since the first satellite photographs he outlined in his world map, from Africa to Mongolia, consists of land that nomads used for thousands of years without causing desertification and plainly can't be settled through agriculture. No need for government programmes beyond allowing nomads to continue their traditional lifestyles.
You are also assuming that the Chinese are still stuck in the Mao-era mentality or otherwise still retain their old xenophobia. That's not completely true, a lot of Chinese, even among the rich, are turning to Tibetan Buddhism and are becoming more aware of these problems. That's assuming that the PRC will even retain their power more than a century, something I sincerely doubt.