Tibetan-Chinese Are Not American Indians

I have seen Mel Gibson's "Braveheart" once in the theater and several times on cable, and I never cease to be deeply moved by what screenwriting teachers term "a good story, well told." The same holds true of Neil Jordan's political biography "Michael Collins," about the famous, or infamous Irish revolutionary of the same name.
I do not however assume merely because I have enjoyed a well scripted and well produced two hours of entertainment that I have necessarily learned anything substantive about English, Scottish or Irish history. I retain enough presence of mind to recall Hollywood's record of playing fast and loose with historical facts, motivated by either commercial considerations or the filmmakers' political biases.
The relationship between majority Han-Chinese and minority Tibetan-Chinese does NOT historically parallel that of European-Americans and Native Americans. The territory of modern China includes Tibet not because "the Han-Chinese conquered Tibetan-Chinese" the way European-Americans conquered American Indians and Hawaiians. (E.g., "Dances with Wolves").
Americans and Europeans who know nothing of Chinese history, yet shrilly demand that Tibet, Xinjiang, or Mongolia be carved out of China, do not realize how crazy and laughable their demands are. Imagine modern day Chinese wringing their hands and criticizing Britain for imposing the Anglo- Saxon tongue on Englishmen of Norman-descent, characterizing that as "cultural genocide?" Should Englishmen with Norman surnames secede from England? Crazy? Laughable? You bet. If only they knew how crazy and laughable.