“The internet sees censorship as damage and routes around it.”

From a very primitive perspective, this is true. Many of the infrastructure protocols (DNS, BGP, etc.) that the internet sits on are designed to be resilient and fault tolerant. Block access to a DNS server, and the system will find another one. Usually. Depending on circumstances.

Firewalling an entire country is incredibly difficult. From a technical point of view, the GFoC is only modestly successful. It blocks casual and accidental access to the ‘outside world’ just fine, but for the determined operator there are absolutely ways around it - VPNs, cellular networks, satellite relays, you name it.

But do you want to risk having the police show up at your door with orders to kill on sight?

This is fundamentally no different than content filtering in a typical office. From my work computer, I can’t get to porn sites. If I really wanted to, I could find a way - but the odds are pretty good that HR would be at my desk with termination papers and a security escort out of the building.