IE I see the FBI raid the biggest pools and alter the miner to ignore transactions that dont divert fees to a FED wallet, thats all they have to do, not bureucratic shit, no forms, no checks, just a hardcoded VAT. More countries will follow and boundaries will be raised before you know it. Effectively splitting the transaction tree into a forest, without hurting the blockchain.
I think you are overestimating the size of bitcoin infrastructure in your country comparing to world-wide infrastructure.
So if you Cross China, India (shutting down BTC), EU, USA taking over btc infrastructure, what is left? Sealand? sure the rest of the world can withstand a 51% attack.
USA and EU would propably rather shutdown Internet than lose control over Euro or Dollar. And please don't give me tha mesh crap radiowaves are regulated too, oh and they can be triangulated also.