Monotheistic gods are more resistant to people gaining knowledge. It’s more amporphous and it can flow into, and out of, gaps of knowledge more than specifically-purposed gods.
For instance, let’s say you have a sun god. The sun moves across the sky either because it’s a god itself and it likes to fly in nice circles, or some god is pushing it across the sky, and that’s his job.
Okay, so human knowledge advances and we figure out how the solar system works. Now what use is there for a sun god? It doesn’t make sense anymore. Can you chuck out one god and still be assured that all of the other things you think gods cause really are caused by gods? What about when you learn about how the climate and weather works? Do you need your rain gods and harvest gods anymore?
On the other hand, with a more subtle monotheistic god, who designed everything but isn’t necesary to run things from day to day, you can answer everything with “yep, ok, but… god did it”. Figure out how the solar system works? Well that’s just how god designed it. Big bang theory? God said “let there be light”. Evolution? Well - you can take the ignorant route and just deny it, or you can say “Well, yes, it happened, but god guided it!” which is pretty much untestable and meaningless.
Speaking of - that’s the core conflict between theists who believe and disbelieve in evolution. We invented gods to answer things we didn’t know. Early cultures made gods for everything - the sun, the moon, the tides, the seasons - because they didn’t know how anything worked. As we learned more, we went down the list and checked off more and more things that no longer needed to be explained by god or gods because we knew how the natural world worked.
And then we get to evolution. Surely all of the animals and plants that exist are there because that’s how god made it, right?! Surely we humans are special and not just the result of some natural biological process, preposterous! So while evolution and theism aren’t totally exclusive (lots of people don’t deny evolution but just instead say god did it), that was one of the great mysteries that we needed god for, and people want to cling to it desperately.
So when we figured out the solar system, it killed the sun god. When we figured out evolution - it doesn’t quite kill the monotheistic god, because he’s vague and you can just ascribe whatever purpose to him that you wish - but it really strikes people in a very deep way. They may not have a big personal stake as to whether a sun god pushes the sun across the sky vs the earth rotating, but they have a big personal stake about whether or not they’re special and created in god’s image, and the universe is designed for us. The very nature of our species - of who they are - is so critical to their identity, and yet here we are not really needing god to explain it. That robs us of our specialness in their eyes, and it’s a tough pill to swallow.