What is disturbing is that Abraham was approaching the killing of his child no differently than any other adherent of a faith that practiced human sacrifice. He believed that God wanted a human sacrifice, and was willing to perform it, even upon his own kid.
Do you understand that human sacrifice was VERY common back in that time, among all sorts of societies?
Have you seen the miniseries "The Tudors?" Political leaders regularly had people tortured, maimed, castrated, burned, body parts cut off, hung but not killed, drawn and quartered, etc. and big crowds of people watched and cheered and threw a party every time.
It seems strange and bizarre and cruel to us now, but had we lived back in that time, we might well have been part of the cheering crowd -and then gone home to a nice meal of mutton afterwards, looking forward to the next big street party.