I have already said China's policy towards Tibet is wrong. They should at least give the same autonomy to Tibet as it does to hong Kong amnd Macau.
I think it is dangerous to make statements like
But you're right that China wants all Tibetan culture wiped off the earth.
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There may be some Chinese who like those in the Culture Revolution want to destroy the past to bring in a new system. However most Chinese value their past. Buddhist temples have been preserved even in Beijing. The problem in Tibet is that the Han Chinese see the Tibetans as a threat. They are trying to settle in Tibet to lessen the numbers of Tibetans. I think this wrong and will fail. The unique culture of Tibet will survive as has the regional cutures of other pats of China.It is true that
No foreigner is allowed to talk to any monks or nuns on Tibet anymore.
The monasteries and nunneries are all under Chinese control and a lot of what tourists see is all pretend, all staged
However this is also true in Cambodia and Vietnam. Surely showing of monastries to tourists is at least an indication that they want to preseve some aspects of Buddhist culture. Of course all tours are control however I am not sure they can be call pretence. It is true that many Buddhists in China do not support the Daila Lama, He is a political figure as well as a spiritual leader.
However I do support his call not to boycott the Olympic Games. I attended the Moscow Games and found the American boycott had no effect. In fact there were more World Records broken there than most other Games.
Visitors to the Games might see a clean up city but at least there is some reform. If the Games are held, China may be for es to make some gestures towards Darful in the Sudan and Tibet.