This is where history shapes the meaning of the word "sovereignty". China is a multi-national state (56 nationalities). China was ruled by ethnic-minority many times in its history. Just to name a few, ethnic-Jins, Qidans, Mongols, Manchus and more... When Mongol Khan established its capital Dadu(in Beijing), Khan assume the "Mandate of Heaven" to reign over the Middle Kingdom. Therefore, China (Middle Kingdom) can't be colonized by Mongols. Mongol Khan was the "Son of the Heaven" with divine "sovereignty". Moreover, Tibet can't be colonized by CCP, Mongols nor Manchus. The right to rule is not limited to one dynasty, party or ethnic group but through the 'Mandate of Heaven'. Who knows where or to whom this mandate will go to next (Tibet?).
Currently every country in the world recognizes China's sovereignty over Tibet.
