For sure, but even then the EU needs to go through the democratic process it has in place.

Oh absolutely, I don’t think anyone’s arguing for sending an army to Hungary or something.

The question is indeed how much can practically be done. However, it’s not like Hungary can unilaterally veto everything without consequences - they (or Fidesz specifically, I suppose) still have their own list of things they want to get done, and thus there’s room for negotiation.