Actually I do want to cut off entire countries, if those jurisdictions are waging criminal war against our citizens. Clean up if you want to participate in the global community.
No disagreement from me here - if I had anything to say, Russia, North Korea, Iran, China and on the cybercrime side Turkey (a hotbed for scam callcenters targeting Germany) and India would be completely cut off from Internet and telephony networks.
It's time to hold bad actors accountable. Unfortunately, the cost of doing so would put way too much money at risk, I'd even see some of these escalating into outright war.