In terms of the issues I have been discussing here, the most important of these documents is the Bill of Rights of 1689, where Parliament required King William III and Queen Mary II to sign a declaration transferring most of the still extant powers of the monarchy to the day to day control of Parliament. You can find the text of that document here.
I’m descended from Robert Fitzwalter, the leader of the Magna Carta Barons, so I’ve studied many of the the things of which you speak.
And my assertion is that the condoning of homosexual conduct is one of the worst violations of the premises of the English Constitution imaginable, because it destroys its moral basis and authority.