Earlier quoted context omitted.
Without going into the sentiment of this, I suppose Chaos Islands are not part of the United Kingdom but rather an overseas territory, so more like "property", to put it bluntly. I guess the government can just give away a building it owns, and this is more analogous than giving away "territory". And there is no current indigenous population there either. But yeah, Jersey is also an overseas territory, can the govern…
The United Kingdom has parliamentary supremacy with little to no checks or balances, so if the parliament wants to give away something, there is nothing that can really stop them.
If Parliament tried to ban booze (as the US Federal Government once did) that's probably not going to go well, and maybe they would (like the US government) be forced to undo that - but all they did here was give away something very few of their citizens likely even knew they had. I was surprised it made headlines.