Which is a political problem and has nothing to do with their banking systems. These people don't want to use Bitcoin, like they didn't want to use USD or EUR before.

And using Bitcoin as a workaround against authoritarian governments sounds pretty risky to me. Everything leaves a trace on the blockchain and it's fairly easy to control (and ban) conversion to/from fiat currency. Going back to peer-to-peer barter is something, I guess, but I don't think we should celebrate that.