First, there are quotes of the then young Dalai Lama complimenting Mao and even say Mao was "like a father". In which context did that happened? How much time it took for the relations become worse to the point of Chinese soldiers raping Tibetan monks and nuns?
Second, the Dalai Lama has shown simpathy for Marxism - however, the rebels who took him from power where Marxist, weren't they? I don't understand, why did the Tibetan people rebelled against the smiling man we all like in the West? What kind of government did they have?
Finally, I understand we have the 20 years rule, but could anyone tell me what changed in Tibet and how modern Tibet is doing regarding welfare, government, etc?
I suggest reading "Dragon in the Land of Snows" by Tshering Shakya. It's a history of modern Tibet started more or less with the Dalai Lama's youth and covering - in extreme detail - the invasion of Tibet, the decade of attempted co-existence with China, and Tibet since the Dalai Lama's flight.