Nothing you could do or say could convince me that is a good idea.
It's not as simple as that. The Cuban embargo has stifled Cuba's growth and left it so that people don't have cell phones or internet at all. Standing up for Cubans' rights and refusing to deal with their government ultimately badly hurt common citizens.
Providing search services to Chinese citizens and letting their government rewrite results as they see fit may be better than denying them search altogether. If Google pulls out, the Chinese will still have censored search results, but from an inferior search provider.