"and think it isn't too much different today, is it?"
Nope:
"12 This is the account of Abraham's son Ishmael . . . And they lived in hostility toward all their brothers."
And, of course, Joshua's descendants are still being punished for failing to wipe out the Gibeonites.
I'm sure you know that, every year at the Hajj, the Muslims remind themselves of how the mother of the Israelites threw the mother of the Arabs out into the wilderness to die, and that they still refer to Jews as "birthright stealers." They wander back and forth in what it supposed to be the same valley where Hagar wandered with Ishmael. For them, the story of Abraham is as if it happened yesterday.
Did you know that their biggest eid (feast)celebrates the occasion where Abraham took his son up to the mountain, and was stopped by an angel before he sacrificed him? The details are all the same, except the son is Ishmael, not Isaac.