That’s like asking why someone would want to apply what Chinese people believe about the world to writings by Chinese people. The Israelites were part of the ANE broader culture; indeed the majority of the Old Testament canon is all about how hard it was to drag them away from it – and that it never succeeded.
Ever ask why so many Jews expected Messiah to be a general who would drive out the Romans? That was what the ANE understood a Deliverer to be, and the children of Israel by the time of Christ were still stuck in the ANE worldview. Sure, they’d modified it somewhat, but their understanding of temple and priesthood and kingship and more were still primarily ANE; that’s why the disciples couldn’t grasp the notion that Jesus had to die – ANE thought had no room for a dying Messiah.
Besides which, that’s how you look at any human literature: from the point of view of the culture it comes from. Yes, the pieces of the opening of Genesis do a big smack-down on other gods, but they only have to do that because the Israelites had that ANE worldview.
It makes no sense not to do so! The whole Old Testament canon is about the struggle to get God’s people to think God’s way instead of the ANE way.
Consider Jereboam: when he led a rebellion and formed the northern kingdom, he had no problem at all getting the people to accept a new temple not authorized by Yahweh, along with a new priesthood! Instead they went right back to where they’d been so many centuries before, contributing gold to make a golden calf. That shows they’d made essentially zip progress in getting free from the ANE worldview! And how do you best communicate to someone – do you pound them over the head to teach them an entirely different worldview? No! – you talk to them in the terms of the worldview they already have or they’ll just decide you’re delusional and walk away (if you’re lucky; trying to teach a modern worldview in ancient Israel could easily have gotten you stoned on the spot).
Data – lots of data. We have (by the grace of God) so much of their ancient literature that a lot hasn’t even been translated yet (the same is true of biblical material, despite millions of dollars having been poured into trying to catch up – and ANE studies is not as well funded). We have treatises on the motion of the heavenly bodies, which were called that because they believed the stars were living beings who shone with light because they were heavenly. We have treatises on temples and temple rituals. We have treatises on kingship, both its source and nature. We have literature from them in more literary genres than most people could even imagine, describing everything from how to build a boat of reeds that could carry stone blocks for construction – including how the reeds must be cut and dried and bundled and covered with pitch in order to make the gods bless your boat – to how to deal with unruly teenagers, why lawyers were a pestilence on society, what curses to use against someone wealthier and what against someone of the same status and what against someone of lower status, and the reasons why and discussions of all sorts of incidentals. We have records of harvests and how grain must be stored so as not to offend the gods, records of battles that are exaggerated (which was expected), records detailing how many paces must be walked when backing away from the altar of a certain god. We have treatises on what the gods were like and how they expected humans to behave. We have treatises on slavery and taxation (slavery could be a form of taxation) and on how government should be run. I even recall an essay on how to placate both one’s neighbors and the gods in order to be sure your white laundry would turn out white!
Because the Old Testament scriptures tell us they did – repeatedly, loudly, and determinedly. If they hadn’t, kinds wouldn’t have had to keep cutting down Asherah poles and prophets wouldn’t have had to keep telling the people to stop with the Baal worship already (note that Baal was worshipped in the ANE from before Jacob et al went down to Egypt right up through the Exile).
Yet you demand it be read in a way that would have made no sense to most people throughout history (including when it was written) and would have been thought pointless if they could make sense of it. And you give no support from scripture for your view, BTW!
“Counter-intuitive” when by doing so we find that the Bible is far richer and more powerful literature than if we read it as something written by a friend’s great-grandfather in a journal of things he witnessed – an odd view, that. By the YEC view, the opening Creation account is almost meaningless theologically, but when we recognize the kinds of ancient literature that are employed there all in the one text and read it according to them theological meaning practically screams at us! As the one pastor said, reading Genesis literally the first Creation story doesn’t have enough to make one sermon, but reading it as the kind of ancient literature it is sermon after sermon comes out almost without trying.
BTW, how do we know what literary genres are being used? We know because the forms match those of contemporary ANE literature pretty much perfectly. That’s why we know that the first Creation account is both temple inauguration and ‘royal chronicle’ at the same time while being an edited version of the Egyptian creation story done so as to trash all the Egyptian gods by showing they were made as servants to YHWH-Elohim.