The whole Nazareth thing is a give away. It never existed. He was apparently a Nasorene which was a sort of religious, pseudo gorilla chestwig type affair, and that got corrupted into jesus of nazareth for some obscure, albeit political reason.
The thing about christianity is that it requires no proof. Faith is the only prerequisite and any reasoning is deemed to be the devil's work so it's a complete no brainer.
It's soul food for the inept, the lonely, the frightened and the masses. It's fantasy that can be indulged in without much opposition.
It is organised (?) and orchestrated delusion at it's most base and yet it appeals to the timid in a way that cannot be understood by those who are not taken in by it.