As you mentioned before, when you start encountering the most militant of atheists, they start treating the entire Bible as literal and factual analytical history.Most atheists, at least none of the militant ones posting online, are any of those things anymore than MAGAts are. Both groups are irrational and fanatical.
It's an easy straw man to set up and knock down.
It actually takes work, integrity, and rationality to be impartial and practice the methods of literary criticism and to recognize literary style to get anything meaningful out of the Bible.
So the takeaway is that militant Atheists and evangelical Bible thumpers tend to be the least rational and least empirical of posters.