Ok
They were not the only Jews.
Actually, I don't. Scripture shows us that the Apostles used the Septuagint. History proves that the early Christians used the Septuagint. It is you who are bias because
Catholics have the Deuterocanonical books in their Bibles. I mean, lets face it, I read through the Catholic forum all the time and 90% of posts are from non-Catholic Christians, many who are probably former Catholics, who dislike the Catholic Church and anything that is associated with it, for example, the Deuterocanonical books.
p.s.
I'm not saying I agree with Catholics on all things. As an Orthodoxy Christian, there are many points of disagreement.
I'm not trying to push you to agree with me. You have free will to believe or not believe what you want.