I'm not saying what China is currently doing in XingJiang is right, but to deny that overthrowing Dalai Lama resulted in a better standard of life for Tibet's inhabitants is lunacy.
Canada tried that with its native population in the 20th century -- take children away from their backwards and uncivilized parents and raise them instead in residential schools -- and it was an utter disaster.
Old Tibetan system is exactly how force kids turning into monks and abey the teachings of Dalai Lama (note: not only the 14th).
What the Communist did wrong in Tibet, is not about exile Dalai Lama, but replacing the old ruling ranks without providing more options. So if anything thing went wrong, blame the Communists.
http://en.wikipedia.org/wiki/East_Turkestan_Islamic_Movement