Nepal, just like any country has the right to stop more refugees from entering the country. Nepal has been very kind to be giving asylum to Tibetans over the last few decades. Whatever the political agenda may be from the Chinese govt, I feel that Tibetans should stay in Tibet as China is progressing very rapidly. The conditions of living are improving. What' important is the dharma and getting a good education to open up their mind, have more knowledge and to be self sustainable. Isn't that what a modern Buddhist family would want?
So instead of going to a foreign country, readapting and starting all over again, why not stay in Tibet and grow from there? Many people around the world are trying to enter China because of the tremendous amount of opportunities. Tibetan are in China, so they shouldn't waste the opportunity.
Sorry to sound crude, but the Tibetans can be another nationality in their future life. So what's the point of being so adamant about leaving Tibet just because it's under China's rule?