Please allow me to use your logic.

Suppose the Tibetans decide to revenge for their people killed by Chinese (at least tens of thousands during the 1950's)...... They're not powerful, and they have to do something alternatively. So.........

They aim a residencial building in Beijing and blast it...... and suppose your families are living within.....

Then tell me what you feel?

.............
Fortunately, Tibetan people are so kind and peace. Thus the above are supposing only. I just ask you to think in different directions. Thanks.