Here's where the Bible starts getting really horrible for the majority of people.
I remember about 30 years ago it was perfectly fine to have a family of four ride down the highway with no seatbelts. That was only 3 decades ago, these books are like 25oo years ago. I appreciate you contextualizing what other tribes were doing. Humans in general back then had some wild practices.
I think it’s hard for us to grasp that God both meets cultures where they are and points the way forward. Immanuel takes on a much deeper meaning when you realize how much God must love us to be able to see us deform God’s character and still work with us. It reminds me of John XXIII: “See everything; turn a blind eye to much; correct a little.” Balanced with Revelation: “He will dwell with them, and they shall be his people, and God himself will be with them;  he will wipe away every tear from their eyes, and death shall be no more, neither shall there be mourning nor crying nor pain any more, for the former things have passed away."