I doubt that the Jesus decribed in the gospels ever existed.
...in other words, there may have been a "Clark Kent," but there was no "SUPERMAN."
Iff he lived, when he died, he died. There is no "Jesus the Friendly Ghost." There is no invisible Super-Friend or Eternal King of New Jerusalem.
He may have left a bloodline in France, but if he did, even that is irrelevant today.