Whatever the motive and whoever author it fails the test of authenticity as part of God's Word. Example:
“17. And there was an order from the Emperor Augustus, that all in Bethlehem of Judaea should be enrolled. And Joseph said: I shall enrol my sons, but what shall I do with this maiden? How shall I enrol her? As my wife? I am ashamed. As my daughter then”
Your fight is with the Vatican, not me. They have withstood numerous heretics and 40 anti-Popes. I'm pretty sure their freshman team can handle your charges.