The character of the “god-man saviour” existed for millennia before the name “Jesus”was appended to it. They were all born in a cave, of miraculous birth with oxen present, performed miracles including giving sight to the blind and raising the dead, had twelve followers, died sacrificially etc etc.
Since the character of the god-man saviour was a pagan folk tale and a theatrical persona with counterparts in all middle eastern religions, the idea of such a man was in the minds of the population already in the first century.
If you believe in Jesus as a real person, answer this question; how likely is it that Harry Potter will come to life as a real person?
For those are precisely the same odds of Jesus being a real person. No doubt this is why the Roman authorities in the early centuries thought the Jesus cults to be ignorant and mischievous with their stupid ideas because they taught the most preposterous things such as a god-man coming to life in Judea. What a brilliant rumour for the downtrodden and gullible......and what a potential market in priestly spiritual advising!
As a footnote to demonstrate the universality of the god-man saviour story, by the fourth century, opportunistic Judean tourist guides were taking the Jesus faithful to a cave and not a stable as the purported birthplace of the messiah...because as everyone knew; god-men were born in caves. Caves of course were very convenient for stabling animals. Remember that by the fourth century the Bible had only just been compiled and was not distributed as was the case after the invention of moveable type a thousand years later........... but the folk tales with the idea of a cave, were there in the folk consciousness.
Everyone knows Jesus grew up in Nazareth. Nazareth was a thriving small community by the fourth century but but as archeologists have shown and contemporary maps and the absence of contemporary references indicate; it did not even exist as a place in the first century... yet the gospels claim it was where Jesus lived as the son of a carpenter. Carpenters need tools and a workshop and a market. Like Nazareth in the first century; Jesus, Joseph and Mary too were stories, not historical realities.
The miracles were stories for the gullible to believe that God was revealing himself to them.