If the government succeeds in hoarding a massive supply of bitcoin, they wouldn't want you transacting on the base layer (the main Bitcoin blockchain) because it’s too slow and they can't easily censor it. Instead... ​Government-Run Layer 2: You’d have the unit of account (Bitcoin), but the government would control the rails. They could still freeze your sats if you have too many unpaid parking tickets or a low "social credit" score.