Pope Pius VI condemns the treatment of Catholic clergy under France's Civil Constitution. Pius VI was elected pope at a time when secular power is growing across Europe.
The traditional power and authority of religious institutions are being nullified and Pope Pius VI is not only unable to stop this, but his policies may make the situation worse.
Early on he accepts the French Revolution, but when Catholic priests are forced to swear loyalty to the state instead of the church, Pius will condemn both the French government and the Rights of Man document. It probably doesn't help that he is burned in effigy by Parisians at the Palais Royal.