Liberty of thought, liberty of conscience, liberty of religions, religious liberty—these are modern errors that were refuted by the pre-conciliar popes in their condemnations of Liberalism. However, the Second Vatican Council took another stance on these questions.
This video, What is the problem with Religious Liberty, will examine and explain the difference between the Catholic teaching on the proper use of liberty and how this is contradicted by the error of Liberalism, a key component to Modernism.
While all men are endowed with the dignity of free will, the Church's teaches that use of this liberty must conform to what is good and true and consequently all men must believe what is true. However, Modernism teaches that man may choose to believe as he likes, whether it is right or wrong, so long as his exercise of liberty does not harm others. These opposing views are the difference between tolerance versus religious liberty.
It was the faulty modernist thinking that led to the Second Vatican Council's Declaration on Religious Freedom (Dignitatis Humanae—December 7, 1965), which presented a new definition of Religious Liberty. This was a crucial topic during the Council and it led to an floor debate between the orthodox Cardinal Ottaviani and the liberal Cardinal Bea as related in Archbishop Lefebvre preparing the Council.
A tragic post-conciliar consequence of Dignitatis Humanae has been the dissolution of Catholic States, for the error of religious liberty denies the doctrine of the Social Reign of Christ the King: that He must reign not only over hearts privately, but also publicly over nations.