Are any atheists up to this challenge?
I know almost nothing about the gods people believe in outside of the god of Abraham.
If one is going to reject all gods, shouldn't one at least have a working understanding of what they are or what they do beyond the Abrahamic paradigm?
Why? How does that information inform the atheist regarding his atheism?
Science requires evidence, not appearance. Dark matter is an example of this. It wasn't apparent until early in the 20th century, and 90 years later, we still know very little about it.
Dark matter was as useless an idea as the gods are until something was observed that it was needed to account for. We don't need to postulate gods to account for any observation. That's not to say that they don't exist and don't modify perceptible reality, but as long as that reality follows regular laws, it doesn't matter that they have a god to thank for their existence. What if Thor really is the source of lightning and thunder, and if he weren't real or ceased to exist, so would thunder and lightning. OK, but that's useless information EVEN IF CORRECT. It just means that some day, they might disappear. What to do with that knowledge? Nothing.
I know you had some issues regarding the meaning of appearance in this thread, but for me, appearance means how something presents itself to the senses, which makes it evidence, evidence being the noun form of the adjective evident, that is, evidence is what
appears to the senses. The next step is identify the significance of the evidence - what it implies about reality, information that becomes useful if it can be applied to the decisions of daily life to facilitate desired outcomes.
Fiction is real. You seem not to understand this. Being 'representational' does not mean that it's not real. A newspaper drawing of Donald Trump is not Donald Trump. But it's a representation of Donald Trump. And it is just as 'real' as Donald Trump.
The fiction is real - people generate it and it can be purchased and read - but unless it is representational as with metaphor and allegory, which probably shouldn't be called fiction, its referent is not. Nor should a recognizable caricature be called fiction. It's a nonverbal symbol. Yes, Trump is real. The ideas Santa and Trump are real. Drawings of them are real. But only one represents more than an idea. The concept of Santa, though real - it affects how Christmas is celebrated - has no corresponding extramental referent.
Dark matter is not apparent, that's the point. The consensus in cosmology is that the gravitational effect of as yet undetected matter, is necessary to explain the stability of galaxies. Dark in this instance means unobserved.
In this case, unlike the Dark Ages (written records sparse) and the dark side of the moon (not visible from earth), dark matter is literally dark. It doesn't emit photons, just gravitons.