And so the other thing you are presupposing was that we would know what the scripture is, right. Specifically what John wrote without Ignatius, or like Polycarp which we wouldn't because we know who wrote the scriptures through Irenaeus, who was a disciple of Polycarp. Without Ignatius and Polycarp we wouldn't know for sure who the authors of the Gospels were, right, or of John's writing. You also have this problem if you want to throw Ignatius and Polycarp under the bus.