It's as factual as Santa at the North Pole.
There is, of course, an "
historical Santa"; Who according to Wiki, is himself partly mythical:
Little is known about the historical Saint Nicholas. The earliest accounts of his life were written centuries after his death and probably contain legendary elaborations. He is said to have been born in the Anatolian seaport of
Patara,
Lycia, in Asia Minor to wealthy Christian parents.
Is this semi-historical person, when stripped of those "legenday elaborations", an historical Santa? What would it even
mean to say that Santa was "historical" on the basis of the existence of Nicholas of Myra, for whom we have only tenuous evidence?
He never even visited the North Pole, and was hardly the only man in history to give gifts to children, or to act to protect children from harm,
if he even did do those things.
He's probably one inspiration for the myth; And he certainly had his name taken to use for its consequence. But his mere existence is essentally irrelevant to the idea that this individual is an historical person:
The character depicted above is easily recognisable; And is clearly
not this guy:
The whole
idea that there is one, individual, historical, Santa is absurd. Santa is a fictional character, whose chief characteristics are legendary - lives at North Pole, delivers gifts to children at Xmas, drinks Coca-Cola, calls everyone a "Ho", etc. etc.
None of these things, the things that make Santa
Santa, are attributes of Nicholas of Myra, so:
1) How is it sensible to declare Nicholas of Myra as "
the historical Santa"; and
2) How could it tell us
anything about modern belief in Santa to even note the existence of a person with a tenuous narrative link to him, who was a real person who lived in the Roman Empire?
Knowing that St Nicholas of Myra existed is not useful, either in support or rebuttal, when debating the existence of flying reindeer with red noses; So why should anyone
care??
When kids suddenly have the revelation that
Santa doesn't exist, they are not becoming deniers of the historicity of Nicholas of Myra, because Nicholas is an irrelevance of whom most of them have never heard, and who they wouldn't give two shits about if they had. If he doesn't keep a "Naughty" and a "Nice" list, he ain't Santa.
Just as some carpenter's son from Nazareth ain't Jesus, if he wasn't resurrected.