The GFW is implemented on the backbone Internet of China, you are suggesting taking down the whole country's network.
Also there are thousands 'cyberpolice' for each province and city lurking on public Internet every hour looking for possible crimes, it's hard to organize an effective attack.
Also there are thousands 'cyberpolice' for each province and city lurking on public Internet every hour looking for possible crimes, it's hard to organize an effective attack.