I am an Atheist
In Fact I think Jesus never existed
HOWEVER, whether he existed or not provides no impetus for this argument.
The archetype he represented, the everyman who comes into the world, secretly of the elite, but never disclosing - even until his death at a horrifying end, which eventually frees us all from our guilt - is a genuine desire in our psychological makeup.
So as Michel Onfray suggested - whether he physically existed is irrelevant, he exists in enough minds to make the question irrelevant.
So this archetype speaks to something that lies within our subconscious. We long to have a 'saviour.'
We long for someone to save us all. Whether its Rush Limbaugh, Sarah Palin, Barack Obama or FDR - we long for this "magic" individual to come along and free us from our toils. The old Spirituals of Antebellum America attest to this: just read the lyrics to "Swing Low Sweet Chariot" to see this in lyrical form.
So we as a culture, oppressed by our own spirits, forced to, in Chuck Palahniuk's words "Work jobs we hate to buy shit we don't need" longs for such a figure.
Just an observation...