Ahem:

more or less internally consistent rules

I made a comparison with Lord Of The Rings exactly because it's a roughly consistent thing but if you dig into the details it's full of inconsistencies, just like all "sacred books" out there.

As for the rest, you clearly have your own magical thinking going on there:

If the problem is that people are doing bad things anchored on their fantasy "logic", then one would expect that you want that to not happen anymore.

Yet all you defend is to not engage with at or near their level or even understand their universe, a restrictive framework that can only accommodate as solutions for the above mentioned problem of them doing bad things one of two options: ignore them or somehow have them jump the full distance from the hole they're in to the level of rationality.

The first option solves nothing, the second option is incredibly unlikely to succeed (one could say it probably requires magic to work).

So either you're not even trying to solve the problem even in the smallest of ways (in which case, I'm afraid you don't have a moral standpoint to preach to others that they should not try to understand religion) or you're relying on approaches that won't work without magic (hence "magical thinking").

Me, I'm willing to come up with a ladder for them to, step by step, rise out of that pit or, at least some way to combat the manipulation of them to do bad things by people who understand that world.

To engage with them whilst they're down there, be it to help out those I can or to reduce how much such people are manipulated into doing harm to others, I have to understand the logic-like rules they're operating under and how other people are manipulating them using those all of which requires at least some understanding of that stuff.