If you mean Jesus as described word for word in the bible? Yes you are right. Such a mythical figure never existed.
A man name Jesus from the first century AD? Who preached in the Levant? Who was baptized by a man named John and was later crucified? There is good enough evidence of such a person existing. This isn’t even a debated question among new testament scholars anymore.
I see you are familiar with Bart Ehrman, Even he doesn’t dispute that a historical Jesus existed.
Here’s an even deeper dive from Bart Ehrman.
That’s fine and I think its pretty much the perfect example of a solid professional relationship (no need to be buddies or “like a family”) and what greatness can be achieved when you work with same endgame in mind. They may have disagreed plenty but only because they wanted to achieve the best outcomes possible.
While they are not friends, if you follow Adam on youtube, you’ll realize there is a huge amount of mutual respect between the two, even to this day.