After decades of guerilla struggling backed by the super power USA and big neighbour india, you are telling us that they have never conducted military strikes? Are you a lawyer in USA?
Tibet is hardly the issue between India and China, the issue is China's backing of nations that sponsor terrorism and support of terrorist groups like JuD against India. If China stops doing that and genuinely extends the hand of friendship to India, Indians would have no reason to be hostile towards China.
The border issue is but a minor irritant compared to Chinese attempts to attack and hurt India through its proxies.
Educated Indians have sympathy for Tibetians because they happen to share the values of the Indian civilization (they are Buddhists, after all), and the physical violence and oppression that took place against them in the past decades. Tibetians are a peaceful people-monks, and commoners dedicated to non-violence. Hence, China can get away with massacring them. However, the major issue for the Indian state is not the violence against the Buddhists-the government would hardly jeopardise Indian economic and strategic interests by keeping the issue of Tibet alive.
By the actions of the present and past Indian governments, it should be abundantly clear to most Chinese that India wants peace and prosperity for both countries-but it is their government that continues to give full political, economic and military backing to a state (Pakistan) that sponsors cross-border terrorism inside India.
If your government were do a volte-face and support India instead of Pakistan, and pressurise Pakistan to stop terrorism inside India, I guarantee you that Indians would be able to make major concessions on the boundary issue. Finally, it is up to YOU to decide if your long term interests will be more secure by being an ally of a small, bankrupt, fundamentalist, Islamic state who sponsors terrorism in India, or of a state that is guaranteed to be the world's 2nd largest economic and military power by mid-century.
If you want friendly relations with India, your government must stop stabbing us in the back first. Until you elect a democratic government that does your bidding however, I don't see how you can have any say in the way your government conducts its foreign affairs.