I can guarantee you....
there will always be a country that would give a big f_ck you to the rest of the world ...and they will allow Bitcoin and Crypto mining. When the hashing power goes down... the difficulty goes down and these people in those countries will once again be able to mine Bitcoin with GPU's and CPU's.
You will even see people moving their whole Bitcoin operation from these "banned" countries to the Bitcoin friendly countries and everything will stay the same. (Like we saw with the Chinese banning Bitcoin mining in China)

El Salvador is that country. I believe others like Iran, and other nation-states that are being sanctioned, and those that will be sanctioned will use what currency that solves the problem of censorship. Once HODLed, and the value of the protocol is truly realized, the HODLer-state will protect it, help/add value to it.