It was Catholic armies which stopped the invasion of the Muslim hordes at the gates of Vienna and Catholic navies which stopped the Muslim hordes off the shores of Lepanto at the very same time that John Calvin was having people beheaded and burned at the stake in Switzerland for disagreeing with his theology.
This doesn't excuse the crimes of the Catholic Church as a corrupt wielder of political power in the two centuries or so before these events, but it does put it into perspective.
The point of my post was that claiming the Roman Church was a driving force behind Magna Carter is a preposterous bit of revisionist fiction, and no one who knows the history of the grudging, eventual "acceptance" of Magna Carter by the Bishops of England -- and only then in exchange for a bribe -- can let it pass.