I said a Queen Consort cannot hold a lesser rank and title without consent from Parliament and the Crown Commonwealth. There is no other title for the wife of the King at the present time except being HM The Queen.
In order for Camilla to be HRH The Princess Consort (which is a lesser title and rank than being HM The Queen) in her own right, Parliament would have to pass legislation removing her legal rank as the wife of the King, making her a commoner and freeing The Sovereign to create her a Princess of the UK via letters patent.
Why would they? Why can the King not, as the fount of honour, create HM the Queen Consort a Princess of the United Kingdom in her own right, to be known as HRH the Princess Consort?