Can Catholics Disagree With The Pope?
A common misconception about that authority of the Pope is that all his opinions are holy and infallible and by disagreeing you are being a heretic. This is a misconception of the catholic dogma of papal infability, which was defined in the First Council of the Vatican and it says 1 : when the Roman pontiff speaks EX CATHEDRA , that is, when, in the exercise of his office as shepherd and teacher of all Christians, in virtue of his supreme apostolic authority, he defines a doctrine concerning faith or morals to be held by the whole church, he possesses, by the divine assistance promised to him in blessed Peter, that infallibility which the divine Redeemer willed his church to enjoy in defining doctrine concerning faith or morals. Therefore, such definitions of the Roman pontiff are of themselves, and not by the consent of the church, irreformable. The extraordinary magisterium was only used two times, one by Pope Pius IX in the dogma of the Immaculate Co...