According to the article you posted, all he has done was try to fight the Chinese, that may be stupid but I dont see how it opposes his spirituality.
It's not that his politics opposes his spirituality. It's that his spirituality is in contention with his politics.
If Tibet simply allows the Chinese to dominate then I dont think that they have any incentive to destroy their culture.
My point exactly. If Tibet were to give ground on some of the political issues, they may keep their spiritual autonomy.
Now, let it be known that I too know very little on the background. I too have a "gut" feeling that because as you said there is no one to protect Tibet (ie: there is no oil to be exploited on their lands), then no matter what political agreements are in place, China would be able to do as it please, recind on it's word, and there is nothing Tibet (or the world) will be able to do about it.