Leave aside Orwell, i will look at him later. I am glad you choose to ignore the spelling mistake, and dwell on a point which i hoped some one would pick.
Let me make the example clearer. Even if, and thats a big IF, the Tibetians (some may address them as Tibetans) think the Chinese are occupying their sacred land, and atheistic ruling class of China is imposing its hegemony over a predominatly non-violent society, it is equally true that China has strategic interest in the region. The way they have subjugated this race is highly immoral. And to think and believe that this is a truth would not be an misplaced assessment.
Even so, the Tibetians cannot be politically incorrect in their language as regards the Chinese aggression and condemn the entire Chinese society.
In modern times a healthy way of engaging with the enemy has to be applied. The refrain and restraint shown by teh Tibetian leadership and diplomats are a worthy example which suggests that PC has its useful role in modern human society. The truth is often not told in a manner as it is told in the streets. In civilised societies often the truth is suppressed. This is a fact. And thats what was meant in the second sentence.