The paper money doesn't go away manically. People stop accepting it because they don't want to get kidnapped or extorted. You can use X on a web browser through a VPN. If your government banned bitcoin that doesn't mean bitcoin will not exist. It simply means if you use bitcoin within that geographical area you get rekt if caught.
Fear of government and what they may or may not do is ultimately what we’re trying to move away from. Governments are supposed to be elected officials (other human beings) who work for their citizens. Not gods who dictate how those beneath them should live. The few always trying to control the many is the crux of the problem. In other words. Fuck em’!