Spare me the intellectual posturing and false bravado. You need to bring more than just attitude to the table. I'm far too old in the tooth to be affected by any latent innuendos or mental intimidations. If the source of my information comes from thousands of internet sites, videos, books, research, or from inside a Chinese fortune cookie, it is all irrelevant. Address the issues, and not the source.
Were the authors of the Gospels anonymous before the 2nd century AD, or not?
Were the authors of the Gospel names added in the 2nd century, or not?
Were the Gospels written 50-70 years after the death of Christ, or not?
Were the accounts of Jesus and His teachings consistent among the Gospels, or not?
Were the authors of the Gospels eyewitness to the resurrection of Christ, or not?
Were the authors of the Gospels stories even consistent, or not
Were the authors of the gospels dependent on the made-up stories of Mathew, or not?
How did the Authors of the Gospels know about baby Jesus, His personal quests and tribulations? Did they just make it up, or not?
How can you be a descendent from King David, and be born from a virgin. You can't be both?
Did Jesus only speak about himself and His divinity only in the Book of John, and not in any of the other Books?
Did Mathew plagiarize about 90% of the Gospel of Mark, or not?
Who hired Mathew to write a Gospel?
Did Jesus have brothers and sisters(James, Joseph, Simon, and Judas), as attested to in the Gospels, or not?
There are many more inconsistencies, plagiarisms, omissions, and make-believe stories, all written in the Gospels of the New Testament. "Who would have thought that the “gospel truth” would be so hard to find in the gospels?". You might start your quest for any semblance of "due diligence"(I don't remember using that line), by addressing the above issues, or issues revealed in the below listed sites, videos, and books. Maybe then you will began to understand that the Gospels were meant to be only extended parables, not historical facts.
Gospel - Wikipedia
Debunking Christianity: Who the Hell Hired Matthew to Write a Gospel?
The Story Of The Storytellers - The Emergence Of The Four Gospel Canon | From Jesus To Christ | FRONTLINE | PBS
https://strangenotions.com/myths-lies-or-truth-can-we-really-trust-the-gospels/
"Truth and Historicity", by Richard Campbell.
"On the Historicity of Jesus: Why we might have reason to doubt", by Richard Carrier
"Gospel Fiction", and "Who wrote the Gospels", by Randel Helms
"Hidden Gospel: How the Search for Jesus Lost its Way", by Philip Jenkins
Hope this helps you in your quest for truth and intellectual honesty.