>>18
Not necessarily. The purpose of a censor is to limit information, not to limit the knowledge that the information exists. (everyone knows democracy exists, where to find it, and where it exists: everyone does not know how democracy comes to exist and where people who know this information are.)
I don't see why that system wouldn't work better than a pure censor of all references to democracy. The nation of China understands why there is censorship, in the same way the US does. No one wants to hear the bullshit, they agree with the censor unless they are being censored, in which case they should be in jail.
I like to think of it similar to the anti-terrorist movement in the US. Democracy advocates are in all forms terrorists, there's just more of them and they're Chinese.
To directly answer your complaint: they can't block all the sites, so instead of blocking Google which will provide the rest of them, they ask Google not to provide the sites. Provided, but not accessible. Google acts as a software firewall, the Great Firewall a hardware. It's the second-catch filter, but it has a visible GUI unlike the hardware one.
I don't know, the system I explained works fine in my eyes and it appears less evil to the average citizen when they know what is being censored. I wish there was a concrete source of information. Information inside China is probably propaganda and outside of China propaganda as well. Any perspective you look to isn't neutral.