No offense to Vatican II, the Holy Father, and whatever other modernist opinions exist on the matter but i’ll take the bulk of our almost 2000 year old faith’s opinion on the Muhammadan faith and trust it. The teacher did nothing wrong here we’re supposed to be instructing our children in the faith at these institutions and showing criticisms of other religions is not a bad thing.
“There is also the superstition of the Ishmaelites which to this day prevails and keeps people in error, being a forerunner of the Antichrist…. From that time to the present a false prophet named Mohammed has appeared in their midst. This man, after having chanced upon the Old and New Testaments and likewise, it seems, having conversed with an Arian monk, devised his own heresy. Then, having insinuated himself into the good graces of the people by a show of seeming piety, he gave out that a certain book had been sent down to him from heaven. He had set down some ridiculous compositions in this book of his and he gave it to them as an object of veneration.”
St. John Damascene
“We profess Christ to be truly God and your prophet to be a precursor of the Antichrist and other profane doctrine.”
Sts. Habenitus, Jeremiah, Peter, Sabinian, Walabonsus, and Wistremundus martyrs of Cordoba
“On the other hand, those who founded sects committed to erroneous doctrines proceeded in a way that is opposite to this, the point is clear in the case of Muhammad. He seduced the people by promises of carnal pleasure to which the concupiscence of the flesh goads us. His teaching also contained precepts that were in conformity with his promises, and he gave free rein to carnal pleasure. In all this, as is not unexpected, he was obeyed by carnal men. As for proofs of the truth of his doctrine, he brought forward only such as could be grasped by the natural ability of anyone with a very modest wisdom. Indeed, the truths that he taught he mingled with many fables and with doctrines of the greatest falsity. He did not bring forth any signs produced in a supernatural way, which alone fittingly gives witness to divine inspiration; for a visible action that can be only divine reveals an invisibly inspired teacher of truth. On the contrary, Muhammad said that he was sent in the power of his arms—which are signs not lacking even to robbers and tyrants.”
St. Thomas Aquinas
“As we have seen, Muhammed had neither supernatural miracles nor natural motives of reason to persuade those of his sect. As he lacked in everything, he took to bestial and barbaric means, which is the force of arms. Thus he introduced and promulgated his message with robberies, murders, and bloodshedding, destroying those who did not want to receive it, and with the same means his ministers conserve this today, until God placates his anger and destroys this pestilence from the earth.
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(Muhammad) can also be figured for the dragon in the same Apocalypse which says that the dragon swept up a third of the stars and hurled down a third to earth. Although this line is more appropriately understood concerning the Antichrist, Mohammed was his precursor – the prophet of Satan, father of the sons of haughtiness.
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Even if all the things contained in his law were fables in philosophy and errors in theology, even for those who do not possess the light of reason, the very manners (Islam) teaches are from a school of vicious bestialities. (Muhammad) did not prove his new sect with any motive, having neither supernatural miracles nor natural reasons, but solely the force of arms, violence, fictions, lies, and carnal license. It remains an impious, blasphemous, vicious cult, an innovention of the devil, and the direct way into the fires of hell. It does not even merit the name of being called a religion.”
St. Juan de Ribera
“The Mahometan paradise, however, is only fit for beasts; for filthy sensual pleasure is all the believer has to expect there.”
St. Alfonsus Liguori