I see what you mean and mostly agree but not with the example you chose: Chinese government never intended to completely block sensitive content. If they wanted

I see what you mean and mostly agree but not with the example you chose: Chinese government never intended to completely block sensitive content. If they wanted so they would use other technologies. Any Chinese netizen with a VPN can go outside and many of them do. What the Chinese government do, successfully, is to make the sensitive content slightly harder to access, compared to local "safe" content. Then, like the water choosing the downward slope, most information consumed by Chinese netizens is inside the GFW.