2. It's actually much harder than convincing 51% of miners that Russia is bad. You'll need to get them to agree on a list of addresses to freeze/sanction. Given that bitcoin addresses are pseudonymous, I'd imagine on agreeing on such a list would be politically impossible. Not to mention, how such action would affect trust in the network and the value of bitcoin
Coming up with a list of suspects is easy, convincing others that they're totally guilty is the hard part. I doubt miners would want a company like Chainalysis to be judge, jury and executioner of the bitcoin network.
There are protocols that work around address banning
TIL the NSA [1] has it's tentacles in SWIFT too..
[1] https://en.wikipedia.org/wiki/SWIFT#Monitoring_by_the_NSA