Tibet throughout history was autonomous, always was, before China invaded.
Not the case was Kashmir and Chechnya or Quebec.
Kashmir has never been autonomous. They had a chance during the partition of the two countries, but elected to remain with India. They have never been autonomous. It is not the appropriate comparison with Tibet which has a far longer history of autonomy than of dependence.
I thank you for what you said on Kashmir. Yes we will never give it up. Pakistan tried to take it from us many times, last time during the Kargil war and everytime there was a war they lost their leader was toppled.
(because the people sulk when they see their nation lose and want their leader to pay the price)
As for Chechnya it is and will always be part of Russia. I like that young chap who is the governor there. With regards to Quebec, the fact that the newer immigrants of the state are reticant to Quebec becoming independant means that this will never be the case as immigrant population is growing.