The U.S controls the dollar but they can't control crypto and if regulations might be possible I think that will only be imposed on centralized platforms. I know there are only few us-based cex platforms, so Russia is still free from using bitcoin. We also have decentralized platforms / p2p, where they can freely transact without worry that they may get block or something. Sorry but you are truly wrong with your expectation, this does not bring an ending to the Russian users.

In most countries where there are no restrictions or sanctions, they can be able to use a bank but they are not happy with it. What they are using instead is cryptocurrency and bitcoin.