OK. Well, the Roman Catholics claim THEY wrote the Bible. Your argument is with them then.
However, NEITHER of you wrote the Bible. The Holy Spirit is the author.
The OT was recognized as Scripture by Jesus, so that eliminates that from the Catholic claim. Peter in his letter, recognizes Paul’s writings as Scripture long before the Catholic church came into existence.
Scripture is GOD’S doing, not the Catholic church’s. They can lay no legitimate claim to it nor any of the power play claims for the only legitimate source to interpret it.
Before 1054 A.D. The two churches were ONE. Therefore the Holy Catholic Church put the Canon together.
All you have to do is read a little history, and you will see who did what.