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.
Jesus-ish existed? Just a thought. A little of this a little if that. Some of these & those. Perhaps a few of the other things and ta da. An individuals legacy can change with every generation. The fish gets bigger every time my Dad recounts the tale of the monster Largemouth Bass he caught.