The Coronation Oath is the freely taken and mutual covenant between the Monarch and the People of Britain. During the Coronation ceremony, the People effectively elect the Monarch, and in return, the Monarch swears the Coronation Oath. Here is the Oath Elizabeth II swore -
Archbishop: Will you solemnly promise and swear to govern the Peoples of the United Kingdom of Great Britain and Northern Ireland, Canada, Australia, New Zealand, the Union of South Africa, Pakistan and Ceylon, and of your Possessions and other Territories to any of them belonging or pertaining, according to their respective laws and customs?
Queen: I solemnly promise so to do.
Archbishop: Will you to your power cause Law and Justice, in Mercy, to be executed in all your judgements?
Queen: I will.
Six British Monarchs have been deposed in one form or another, having been deselected for their failure to maintain the rights and liberties of the People. They were Ethelred, Richard II, Henry VI, Charles I (executed), James II and Edward VIII.
We have a tri-partite government in this country. Parliament, the Judiciary and the Monarchy are intended to provide protections and limits upon each other. One of those limiting powers is Royal Assent. Since Queen Anne. no British Monarch has withheld Royal Assent from an Act of Parliament. Nevertheless it remains there as the exclusive authority of the Monarch, to be used when necessary on behalf of the People. As such, several of our Sovereigns since Anne, especially the present Queen, have broken their Coronation Oath by refusing to withhold Royal Assent from unconstitutional statute. While Government is tri-partite, we the People must recognise our role in demanding our good governance. Remember what John Adams said?
... whether the crown and the people in such a case will not see the necessity of uniting in a remedy.
If we are unhappy with the manner in which we are governed, we have no right to a remedy until we are willing to act in our own defence. We must demand that our Monarch lives by the oath she took. If she does not, we must seek redress elsewhere.