Why does China silence Tibetans after "LIBERATION"?

Hahahahha. The Chinese government has the long time habit of re-writing history, such as the "peaceful liberation" of Tibetan, never mentioning that 11 million Tibetans died from their "peaceful liberation". If they have done so much for Tibetans by liberating them from the Dalai Lama and his "imperialist government" why have Tibetans fled by the millions to India to see their Dalai Lama? Why do the Chinese keep closing Lhasa and other Tibetan areas to the travelers? Why do the Chinese keep torturing, arresting, imprisoning and murdering these "liberated" Tibetans? Why are Tibetans protesting if the Chinese have done so much for them? The truth, I have seen with my own eyes, is that the Chinese have STOLEN all the Tibetan lands from this peace loving people, moved in Han Chinese to every single city in what used to be Tibet in order to take over all the business, and left Tibetans foreign speakers in their own lands!!!!!!!!!!!!!!!! Of course Tibetans are going to object to having their lands stolen, their monasteries destroyed and looted, their monks and lamas imprisoned, their religious places of worship turned into money-making tourist attractions for the wealthy Chinese. That's why the Chinese keep trying to silence Tibetan mouths. Funny enough, movies like Cry of the Snow Lion spell it all out for the world community yet our governments just sit idly by and negotiate the price of gadgets so we can all have CHEAP STUFF. That's surely more important that justice, mercy and principles, right?