Governments can issue regulations as they please. No doubt about it.
The promise of Bitcoin was to leave governments unable to enforce any kind of regulations using technology and decentralization.
The problem with that promise is that it is enormously expensive for consumers to run Bitcoin nodes. Therefore everyone uses third parties, there's not that many of them and there's absolutely no way for them to stay resistent to regulations.

So as I see it, there was a time when governments couldn't enforce their regulations to decentralized currency. Now they can.

What do you think? Is the Bitcoin promise broken?