That's just insane... do you really think the two are comprable?1. Google is not withdrawing from China. They are merely deciding not to implement additional censoring measures to curry additional favor with the government.
2. They have been losing market share to an inferior but government approved search engine Baidu.
Why do you think Google China's Kai-fu Lee left after a few years in his highest position to make a relatively small startup when his track record shows he prefers large corporations like Apple, SGI, and Microsoft? Google knows they are losing ground and he was probably abandoning the sinking ship.
Another year of lost market share to government supported Baidu and the recent espionage was the last straw for Google to know that their current methods weren't working.
3. Why are you comparing them then? It's not like Google decided to make this happen so they could publicly denounce the Chinese government.
Considering their past practices with China, I would have expected them to keep silent on the matter. I don't think it's unreasonable to think that the Schmidt incident influenced the scale of their reaction.
If you think Schmidt's quote did not make a big impact , that's your opinion, not fact.