Tibet to China is like California to Uncle Sam

Dalai Lama has his own vested interests in asserting his power over Tibet. He claimed many Tibetans died under Chinese rule, but he forgot to mention how many innocent Hans were ruthlessly murdered by Tibetan monks. I'm sure that some Tibetans were tortured during "Cultural Revolution", but lot more ethnic Hans were tortured by other Hans for ideological reasons at the same time. There has never been ethnically targeted assault agains Tibetans.

China has had control over Tibet since the Yuan Dynasty (1271–1368).
The government of Republic of China (ROC), which ruled mainland China from 1912 until 1949 and now controls Taiwan, has had cabinet level Mongolian and Tibetan Affairs Commission in charge of administration of Tibet and Mongolia regions since 1912. The Commission retained its cabinet level status after 1949, but no longer executes that function. On 10 May 1943, Chiang Kai-shek asserted that "Tibet is part of Chinese territory... No foreign nation is allowed to interfere in our domestic affairs". He again declared in 1946 that the Tibetans were Chinese. ROC still claims sovereignty over Tibet and Mongolia in its constitution.
In the late 19th century, China adopted the Western model of nation-state diplomacy and concluded a treaty with India regarding Tibet's boundaries and status. This is considered as a sign of sovereignty rather than suzerainty.

Tibet has been an indivisible part of China de jure since the Yuan Dynasty of Mongol-ruled China in the 13th century, comparable to other states such as the Kingdom of Dali and the Tangut Empire that were also incorporated into the Middle Kingdom at the time. The PRC contends that according to the Succession of states theory in international law all subsequent Chinese governments (Ming Dynasty, Qing Dynasty, ROC and PRC) have succeeded the Yuan Dynasty in exercising de jure sovereignty and de facto power over Tibet.

According to the current government, successive Chinese governments have recognized Tibet as having its own unique culture and language; however, they believe that this situation does not necessarily argue in favor of independence, because China has over 56 unique ethnic groups and is one of many multi-national states in the world.

Looking for rationale

During the Opium War, the West made drug trafficking legal into China. This generated lots of revenues for the West. During the same war, the alliance that include Britain, France also looted imperial palaces in Chinese capital. I heard two interesting stories
1. Christie House is auctioning some of those stolen Chinese relics, hoping Chinese will pay good prices to buy them back. A thief called you and told you that he can sell you your baby's picutres he took from your house last night and you have to pay a good price. You felt good?
2. The owner of those stolen relics said that Chinese government should move out of Tibet, if Chinese government does that, he will return these goods for free. How many people really understand Tibetan history. Tibet has been an integral part of China as long as the whites took land from the native in North America. Local Tibetans kept more of their own life styles than North American natives can manage.

The West is in mental shambles.