Your view of the six days of creation is backwards. It is a story that is meant to justify the division into weeks and the concept of Shabbat, a day off once in a week.
It is probably the most widespread social policy that had ever been spread by any religion.
You can look everywhere in the world, including the non judeo Christian parts, and see the work week with a day off implemented.
It is such an intuitive and effective policy that nearly everyone forgot where it came from - but back then, it took a lot of effort to get people on board with it.
So don't judge the merit of the story by whether it's physically how the world was created, but by how the message and the consequences it teaches the reader have changed the world.
Every time you have the weekend to look forward to, remember that without some people believing God created the world in 6 days, you would be working non stop, or without the same day as your family to stop and rest.
It's definitely debatable whether that's how the world was created (I don't think it was that way), but the merits of the message of story are also undeniable. And it is the kind of message you can only get people initially on board with using drastic beliefs.