“So now our argument over who speaks for the Christians we now must first argue who speaks for the Jews? Who does speak for the Jews?”
Well, that’s a whole new knot to untangle for sure. It doesn’t matter much to me, since I don’t hold that Jews have some special authority to determine Scripture. Yet, if you want to claim the Catholics “own” the Bible, then by the same reasoning the Jews “own” the OT, so it seems you should find out what their opinion is on the matter. Can you cite even one modern Jewish group that holds to the apocrypha as support for your inclusion? That would be a start.
The Church does not claim to own the revealed Word of God, only that God made the Church its steward.
Peace be with you