We could, if we wanted, literally just decide

This is basically what it comes down to.

Unless you’re worried about Charlie sailing to France to raise a mercenary army, we can assume he’ll do exactly what he’s told.

Even if the Crown Estate was his personal property (which it isn’t) - parliament is sovereign and there’s more of us than him. We could just take it from him.

God, I hope long enough to see a Great British Republic.