I echo what WisdomBeing has to say on this - let's not try to save the world when things are falling apart "at home". What good is it to encourage good relations between the two largest countries in the world, when we can't even manage to maintain good relations within the small Tibetan exiled community of 100,000 - it is but a dent in the combined populations of India and China, almost 2 billion people!
Another more pressing concern is this: that while the CTA are busy denying the most basic human rights and freedoms of their own people, they fail to realise that they are inciting civil strife and trouble within the very country that has so kindly offered them refuge and land for so many years. So much violence has broken out from this ban - people and homes being attacked, monasteries being split apart, statues being broken and desecrated in public... Let's not even go into the violence that has broken out in Sikkhim, over Rumtek Monastery, among the karma kagyus. How will the Indians look upon such behaviour from a group of refugees that they have extended their already very populated country to? Doesn't India have enough trouble to deal with themselves?
Then, there's the 'trouble' that the Tibetans are causing to China too (well, perceived that way by the Chinese). Neither the Tibetan government nor the Dalai Lama have responded strongly enough against the self-immolations and insulting comments about China's tactics over recent decades have NOT endeared them to the Chinese government.
So the CTA find themselves in a precarious position - they're already not in China's good books, regarded by them as troublemakers (whether or not this is true is subject to opinion of course, but China has certainly held that view all this time). They're also now at the risk of p**sing off their host country India with all the shenanigans going on within Indian soil.
Oh, and don't forget that they may well be p**sing off the rest of the world too, getting upset over the fact that other countries don't want to support their fight against China (see this article about the Tibetans getting petulant over the British refusal to meet the Dalai Lama:
http://www.dorjeshugden.com/all-articles/the-controversy/so-what-if-britain-didnt-want-to-meet-the-dalai-lama/)
Looks like it's not going to be easy for the CTA to get more friends on their side. They'd better tread carefully now!