Fine. Provide the Scripture to support them, clearly.
You don't accept those books as having the same authority as the rest of the Bible so quoting from them is a waste of time for both of us. You're obviously not some sort of idiot and I'm sure you can find what I was referring to in just a few minutes if you want to.
This isn't a case of some knot-head claiming Cheyanne warriors with wings gave him a second Bible he could decipher by looking in a gopher hole. This is a case of someone removing from the canon what had been accepted as valid inspired Scripture since well before Christ was born.
The interesting thing to me is that people say they rely on Scripture Alone and defend the doctrine of Scripture Alone, yet they don't care that Luther threw out portions of Scripture and even defend him doing so. People who say they rely only on the Scripture aren't bothered in the least that Luther also didn't believe Hebrews, James, Jude, and Revelation, were inspired and worthy of inclusion in the Bible. Why would an individual who was wrong about what should be removed from the New Testament be accepted as the final authority on what should be included in the Old Testament?
If portions of the Septuagint shouldn't have been accepted at the time of Christ, then either Jesus Christ The Word incarnate would have pointed that fact out or Jesus Christ doesn't care what people add to or take away from His Word. Either Jesus Christ cares about all of those who are lost or Jesus Christ doesn't care that for centuries people might be led astray by relying on the Vulgate which the translation of the full Septuagint.
I see nothing in the New Testament that in any way implies Jesus Christ The Word incarnate would ignore the Septuagint containing something He was not the author of. Likewise, Jesus Christ does care very much about those who are lost and wouldn't let Christianity develop for over fifteen hundred years before the Holy Spirit got around to straightening an errors in Scriptures.
Apparently a lot of people have more faith in Luther than in Christ, the Holy Spirit, or the Apostles. I think that's very interesting, you don't, so be it.