He is blessed in numbers but is still a wild ass.
As was my brother. He was a total ass until his drug addiction killed him, but he was still my brother...............
True.
Genesis 25 or so fills it in “and lived in hostility toward all his kinsmen” (or something close; going by memory here).
That said, the most righteous “normal” guy in the OT was Job, or at least most righteous at that particular time.
Job was very clearly an Ishmaelite as his daughters all had Arab names.