Let us recall that, until lately in the modern age, books were expensive possessions, and literacy, uncommon. Many will accuse the Church of burning heretics and their heretical books. Actually, it was the State which viewed heresy as treasonous, and burned heretics at the stake along with witches, et al. The Church was forbidden from shedding blood. The rack and the pear do not shed blood, necessarily.
This seems like a logical and reasonable practice to me if your goal is to preserve the intellectual integrity of knowledge amongst a grossly uneducated/undereducated populace. Seems reasonable. Of course, you can see how much unity and peace we have in the modern age from widely available varieties of texts, mass distribution and availability of ideas, the humility to learn, and general literacy and education, even if heretical. Right? (sic) While you may not approve of their methods, you cannot accuse their premise of being incorrect. You cannot; too much proof. Too much.
“Essential to the doctrine of Sola Scriptura is the idea that the Holy Spirit will enlighten each believer as to the correct interpretation for a given Bible passage. This idea presupposes that each believer possesses a Bible or at least has access to a Bible. The difficulty with such a presumption is that the Bible was not able to be mass-produced and readily available to individual believers until the advent of the printing press in the 15th century. (34) Even then, it would have taken quite some time for large numbers of Bibles to be printed and disseminated to the general population.
The predicament caused by this state of affairs is that millions upon millions of Christians who lived prior to the 15th century would have been left without a final authority, left to flounder spiritually, unless by chance they had access to a hand-copied Bible. Even a mere human understanding of such circumstances would make God out to be quite cruel, as He would have revealed the fullness of His Word to humanity in Christ, knowing that the means by which such information could be made readily available would not exist for another 15 centuries.
On the other hand, we know that God is not cruel at all, but in fact has infinite love for us. It is for this reason that He did not leave us in darkness. He sent us His Son to teach us the way we should believe and act, and this Son established a Church to promote those teachings through preaching to both the learned and the illiterate. “Faith then cometh by hearing; and hearing by the Word of Christ.” (Rom. 10:17). Christ also gave to His Church His guarantee that He would always be with it, never allowing it to fall into error. God, therefore, did not abandon His people and make them rely upon the invention of the printing press to be the means whereby they would come to a saving knowledge of His Son. Instead, He gave us a divinely established, infallible teacher, the Catholic Church, to provide us with the means to be informed of the Good News of the Gospel – and to be informed correctly.”
34. It should be noted that the inventor of the printing press – Johannes Gutenberg – was Catholic, and that the first book he printed was the Bible (circa 1455). It should also be noted that the first printed Bible contained 73 books, the exact same number as today’s Catholic Bible. Protestants deleted 7 books from the Old Testament after the Bible had already begun being printed.
Summa Catechetica, "Neque enim quaero intelligere ut credam, sed credo ut intelligam." – St Anselm, "“Si comprehendus, non est Deus.” -St Augustine, "Let your religion be less of a theory, and more of a love affair." -G.K. Chesterton, "And above all, be on your guard not to want to get anything done by force, because God has given free will to everyone and wants to force no one, but only proposes, invites and counsels." –St. Angela Merici, “Yet such are the pity and compassion of this Lord of ours, so desirous is He that we should seek Him and enjoy His company, that in one way or another He never ceases calling us to Him . . . God here speaks to souls through words uttered by pious people, by sermons or good books, and in many other such ways.” —St. Teresa of Avila, "I want a laity, not arrogant, not rash in speech, not disputatious, but men and women who know their religion, who enter into it, who know just where they stand, who know what they hold and what they do not, and who know their creed so well that they can give an account of it."- Bl John Henry Newman, Cong. Orat., "We cannot always have access to a spiritual Father for counsel in our actions and in our doubts, but reading will abundantly supply his place by giving us directions to escape the illusions of the devil and of our own self-love, and at the same time to submit to the divine will.” —St. Alphonsus Ligouri, "The harm that comes to souls from the lack of reading holy books makes me shudder . . . What power spiritual reading has to lead to a change of course, and to make even worldly people enter into the way of perfection." –St. Padre Pio, "Screens may grab our attention, but books change our lives!" – Word on Fire, "Reading has made many saints!" -St Josemaría Escrivá, "Do you pray? You speak to the Bridegroom. Do you read? He speaks to you." —St. Jerome, from his Letter 22 to Eustochium, "Encounter, not confrontation; attraction, not promotion; dialogue, not debate." -cf Pope Francis, "God here speaks to souls through…good books“ – St Teresa of Avila, Interior Castle, "You will not see anyone who is really striving after his advancement who is not given to spiritual reading. And as to him who neglects it, the fact will soon be observed by his progress.” -St Athanasius, "To convert someone, go and take them by the hand and guide them." -St Thomas Aquinas, OP. 1 saint ruins ALL the cynicism in Hell & on Earth. “When we pray we talk to God; when we read God talks to us…All spiritual growth comes from reading and reflection.” -St Isidore of Seville, “Also in some meditations today I earnestly asked our Lord to watch over my compositions that they might do me no harm through the enmity or imprudence of any man or my own; that He would have them as His own and employ or not employ them as He should see fit. And this I believe is heard.” -GM Hopkins, SJ, "Only God knows the good that can come about by reading one good Catholic book." — St. John Bosco, "Why don't you try explaining it to them?" – cf St Peter Canisius, SJ, Doctor of the Church, Doctor of the Catechism, "Already I was coming to appreciate that often apologetics consists of offering theological eye glasses of varying prescriptions to an inquirer. Only one prescription will give him clear sight; all the others will give him at best indistinct sight. What you want him to see—some particular truth of the Faith—will remain fuzzy to him until you come across theological eye glasses that precisely compensate for his particular defect of vision." -Karl Keating, "The more perfectly we know God, the more perfectly we love Him." -St Thomas Aquinas, OP, ST, I-II,67,6 ad 3, “But always when I was without a book, my soul would at once become disturbed, and my thoughts wandered." —St. Teresa of Avila, "Let those who think I have said too little and those who think I have said too much, forgive me; and let those who think I have said just enough thank God with me." –St. Augustine, "Without good books and spiritual reading, it will be morally impossible to save our souls." —St. Alphonsus Liguori "Never read books you aren't sure about. . . even supposing that these bad books are very well written from a literary point of view. Let me ask you this: Would you drink something you knew was poisoned just because it was offered to you in a golden cup?" -St. John Bosco " To teach in order to lead others to faith is the task of every preacher and of each believer." —St. Thomas Aquinas, OP. "Prayer purifies us, reading instructs us. Both are good when both are possible. Otherwise, prayer is better than reading." –St. Isidore of Seville “The aid of spiritual books is for you a necessity.… You, who are in the midst of battle, must protect yourself with the buckler of holy thoughts drawn from good books.” -St. John Chrysostom