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.
Were those solely present in Zoroastrianism? From what I understand of Egyptian religion, there’s the whole Thoth “weighing your heart to see if it’s lighter than a feather” thing. I think free will has always been a “popular” idea, but even then, there are passages in the Bible that contradict free will - to the point that Calvinists much later discarded it.