Prove it.
Even the verse you keep using proves you wrong.
2 Thessalonians 2:15 Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.
Didn’t you say nothing was written?
Look folks, there were plenty of arguments and disagreements in the Early Church. Some of you act as if everyone was in 100% agreement about what was said and how it was to be translated and copied.
That is clearly false.
And yes, there were people who took notes, who wrote things down, but they were often in direct conflict with each other, just as modern day reporters do not always agree one what was said.
The Church figured out those differences.
I do NOT claim that there was no written Scripture, I do claim, accurately that there was No Sacred Scripture bound in one document, called the Bible, accessible to the masses until the Catholic Church created such a document.
I challenge one of you to copy the entire New Testament by hand, and tell us how long it takes.
Think about doing this millions of times over.
Those who think written Sacred Scripture was ever easy to come by, before the Printing Press are absurd.
There is a reason why Jesus and the Apostles did not carry the Old Testament around with them. They MEMORIZED IT!
And for the vast majority of Early Christians, they learned by ORAL TRADITION!
He is one of those liberal RCs who thinks the NT was not penned until the 4th century.
Even the regular RCs here likely would object to that school.