Google controls the internet. They control the most common browser and OS. If Google ever were to feel sufficiently threatened by countries such as UK attemptin

Google controls the internet. They control the most common browser and OS. If Google ever were to feel sufficiently threatened by countries such as UK attempting to build a great firewall of their own, Google could simply start offering a "Chrome VPN" and proxy user connections through their IP space. Russia and China can get away with blocking Google but for most countries doing so would be economic suicide.