If Bitcoin was banned, then Dutch citizens could just as easily trade wrapped Bitcoin on the Ethereum, BSC or Solana networks. I don't really see how this works

If Bitcoin was banned, then Dutch citizens could just as easily trade wrapped Bitcoin on the Ethereum, BSC or Solana networks. I don't really see how this works unless you literally ban all distributed consensus protocols. And even so, how are you suppose to ban people from "holding" crypto. Transacting I can understand. But holding simply involves storing or remembering a private key. Are you going to ban people if you find a decade old USB stick with a cold wallet? Will you interrogate people, Clockwork Orange style, to make sure they forget their brain wallet phrase? If somebody was using the same public/private key for their other data will you force them to delete their entire crypto identity?