Nobody know what's going to happen but I don't think Korea can be compared with Russia that is one of the biggest countries in the world with much more resources.
I don't know anyone from Korea but I know that countries with sanctions always have higher price for foreign currency exchange.
It's easy for some central authority to block someone bitcoin address, but it's trivial for anyone to generate new address without connection to old that is blocked.
This would be the endless game of cat and mouse.

Maybe it's about time time for normal people to crack down on governments and fake elite who is controlling them all.
Than we won't have crazy decision from any side and we won't have to make war for someone else all the time.