Sounds like you are saying that those who say The Church Of Jesus Christ of Latter Saints is wrong because we have added to the Scriptures are wrong.
But they say they are true Christians, and you say you are a true Christian. Which is right, or are all of you wrong?
I am not saying that.
I’m saying that writings of the Apostolic Eyewitnesses who associated with Jesus in the Palestine of roughly 0-35 AD would be legitimate scripture.
Last I checked my New Testament, Joseph’s last name was not Smith.