There was an actual person behind the Popeye traditions.
So Popeye existed, according to mainstream Biblical historian criteria, as the character of Popeye was based on a real person.
Nobody would seriously doubt that Popeye was based on a real sailor who liked to get into a fight, if they studied history properly.
And , according to mainstream Biblical historical criteria, Sherlock Holmes existed, as the character in the stories was based on a real person.
All you need for somebody to exist is for that person to be based on a real historical person.
This is mainstream history, and mythicists should go to school and learn this.
So Popeye and Sherlock Holmes existed, according to all the criteria of mainstream Biblical history.
Of course, Olive Oyl and Dr. Watson may not have existed, just like Judas and Lazarus may not have existed, but that is simply not relevant to the historically certain facts that Popeye and Sherlock Holmes were based on real historically attested figures.
However, when people say 'Jesus' existed, they really want something more than a historical person behind the story.
They want Jesus to have more of an existence that Popeye or Sherlock Holmes.
So the mere statement that 'Jesus' was based on a real person no more convinces mythicists that Jesus existed than claiming that Popeye was based on a real person is evidence that Popeye existed. Link
If there was a human being who was the basis for the Jesus figure in the NT, he is dead now.
If there was no human being who was the basis for the Jesus figure in the NT, so much the worse.
I think that at best the founder of the Jesus cult was an apocalyptic end times prophet, as I argued in a chapter for The Christian Delusion, but even that is a "best case scenario." Historical studies are fraught with so many problems I could be wrong. So in any case, people who agree there are many myths about Jesus in the Gospels should all agree that the Jesus figure pictured in the Gospels (and the NT for that matter) is a myth. If we must take it all at face value then such a person described there did not exist.
The Jesus of the Gospels is a myth. He never existed.
Now that's a major agreement between us and it goes against the largest religious group opinion in America, evangelicals. Let us then herald this agreement loudly and clearly.
The Jesus in the Gospels never existed. Catch my drift?