1 - I quoted it to show that scripture - ALL SCRIPTURE - is good for teaching, and correcting. Thus a writing that is good for general reading, but that is NOT acceptable for doctrine, is NOT scripture. It just doesn’t meet the test.
2 - There WAS dispute about the canon among Jews, with the main division being those who argued for just the Pentateuch, and those including all of what we now call the Old Testament.
Jesus ended that discussion for his followers when he said, “34 Therefore I send you prophets and wise men and scribes, some of whom you will kill and crucify, and some you will flog in your synagogues and persecute from town to town, 35 so that on you may come all the righteous blood shed on earth, from the blood of righteous Abel to the blood of Zechariah the son of Barachiah, whom you murdered between the sanctuary and the altar.”
and, “44 Then he said to them, “These are my words that I spoke to you while I was still with you, that everything written about me in the Law of Moses and the Prophets and the Psalms must be fulfilled.”
“Lastly, the single biggest Protestant objection to the inclusion of the Deuterocanonicals in the Canon was an absence of a Hebrew language copy.”
Not hardly. The objection is the same one Jerome made - that the Jews did not accept the Apocrypha as scripture. Jesus and the Apostles frequently cited the Old Testament for authority. They did not do so from the Apocrypha.
THAT is the main objection by Protestants, and it falls squarely in line with the teaching of the churches for 1500 years. The Council of Trent, in reaction to the Reformation, upped the ante on the Apocrypha - and then screwed up its listing, so that the term Deuterocanonical had to be invented in 1566.
Be careful with your facts. "Some" Jews did not accept the Deuterocanonicals, most did. There were at least 5 "Jewish" Canons in the first century.
You can't ascribe an error in this to the Latin Church or even to St. Jerome. The Slavonic, the Syriac, Old Armenian, Old Georgian and Coptic versions of the Old Testament include the Deuterocanonicals. Further, the Early Church Fathers all reference them frequently.