Boycott the Olympics?

Should we boycott the China Olympics, or at least the opening ceremonies, because of China’s oppression of Tibet and other human rights violations? Lots of people now are calling for a boycott, including some athletes who believe that competing while breathing China’s polluted air will hurt them. Read this (which argued that Olympic boycotts HAVE been effective in this past) and this (arguing that the China Olympics are going to be a mess anyway).

While being utterly opposed to China’s policies–I still insist on calling it COMMUNIST China, which it still is despite its exploiting free market tactics to gain worldwide economic power, the capitalist phase being a pre-requisite according to Marxism for true socialism–my instinct is to oppose a boycott of the Olympics, though I’m not sure why. What do you think?