Lately I’ve heard people attacking the veracity of the fairy tale book with statements like “Jesus wasn’t real” or it was a psy op operation by the Romans that got out of control. And I hate talking about reddit but it’s basically the atheism mods policy over there that Jesus wasn’t real.
I usually rely on the Wikipedia as my litmus test through life, which shouldn’t work in theory but is great in practicality:
Per https://en.wikipedia.org/wiki/Historicity_of_Jesus
Virtually all scholars agree that a Jewish man called Jesus of Nazareth did exist in Palestine in the 1st century CE. The contrary perspective, that Jesus was mythical, is regarded as a fringe theory.
There are plenty of historians that think Mythicism should be taken seriously.
https://www.richardcarrier.info/archives/21420