I think Lemmy has a problem with history in general, since most people on here have degrees/training in STEM. I see a lot of inaccurate “pop history” shared on here, and a lack of understanding of historiography/how historians analyze primary sources.
The rejection of Jesus’s historicity seems to be accepting C S Lewis’s argument - that if he existed, he was a “lunatic, liar, or lord,” instead of realizing that there was nothing unusual about a messianic Jewish troublemaker in Judea during the early Roman Empire.
There is a lot of historical evidence that a lot of historical figures claiming to be the second coming of the messiah existed at the time. Jesus was just the most popular one. He’s the crème de la crème of messianic figures of the time. That’s all.