Is this a joke? Russia literally restricted foreign currency usage, you can't get USD with you anywhere and you can't transfer it overseas. And no-one is able to use banking obviously. I bet in other countries there are the same issues and many people are unbanked.
This is blatant lie. I can show you my SWIFT transactions out of Russia. There are restrictions on USD cash, so you have alternative rate for paper money, but you still can legally exchange RUB cash to USD cash.