Who said that they were not inspired? Certainly not the Apostles of Jesus!
https://www.ewtn.com/library/ANSWERS/DEUTEROS.HTM
The Apostles & the Deuteros
The Christian acceptance of the deuterocanonical books was logical because the deuterocanonicals were also included in the Septuagint, the Greek edition of the Old Testament which the apostles used to evangelize the world. Two thirds of the Old Testament quotations in the New are from the Septuagint. Yet the apostles nowhere told their converts to avoid seven books of it. Like the Jews all over the world who used the Septuagint, the early Christians accepted the books they found in it. They knew that the apostles would not mislead them and endanger their souls by putting false scriptures in their hands—especially without warning them against them.
But the apostles did not merely place the deuterocanonicals in the hands of their converts as part of the Septuagint. They regularly referred to the deuterocanonicals in their writings. For example, Hebrews 11 encourages us to emulate the heroes of the Old Testament and in the Old Testament "Women received their dead by resurrection. Some were tortured, refusing to accept release, that they might rise again to a better life" (Heb. 11:35).
There are a couple of examples of women receiving back their dead by resurrection in the Protestant Old Testament. You can find Elijah raising the son of the widow of Zarepheth in 1 Kings 17, and you can find his successor Elisha raising the son of the Shunammite woman in 2 Kings 4,
but one thing you can never find—anywhere in the Protestant Old Testament, from front to back, from Genesis to Malachi—is someone being tortured and refusing to accept release for the sake of a better resurrection. If you want to find that, you have to look in the Catholic Old Testament—in the deuterocanonical books Martin Luther cut out of his Bible.
The story is found in 2 Maccabees 7, where we read that during the Maccabean persecution, "It happened also that seven brothers and their mother were arrested and were being compelled by the king, under torture with whips and cords, to partake of unlawful swine's flesh. . . .
ut the brothers and their mother encouraged one another to die nobly, saying, 'The Lord God is watching over us and in truth has compassion on us . . . ' After the first brother had died . . . they brought forward the second for their sport. . . . he in turn underwent tortures as the first brother had done. And when he was at his last breath, he said, 'You accursed wretch, you dismiss us from this present life, but the King of the universe will raise us up to an everlasting renewal of life'" (2 Macc. 7:1, 5-9).
One by one the sons die, proclaiming that they will be vindicated in the resurrection.
"The mother was especially admirable and worthy of honorable memory. Though she saw her seven sons perish within a single day, she bore it with good courage because of her hope in the Lord. She encouraged each of them . . . [saying], 'I do not know how you came into being in my womb. It was not I who gave you life and breath, nor I who set in order the elements within each of you. Therefore the Creator of the world, who shaped the beginning of man and devised the origin of all things, will in his mercy give life and breath back to you again, since you now forget yourselves for the sake of his laws,'" telling the last one, "Do not fear this butcher, but prove worthy of your brothers. Accept death, so that in God's mercy I may get you back again with your brothers" (2 Macc. 7:20-23, 29). This is but one example of the New Testaments' references to the deuterocanonicals.
The early Christians were thus fully justified in recognizing these books as Scripture, for the apostles not only set them in their hands as part of the Bible they used to evangelize the world, but also referred to them in the New Testament itself, citing the things they record as examples to be emulated.