Abraham was prepared to murder his son.
He just had faith in God, and knew also that through Isaac, his offsrping would be reckoned... and if you recall, God did not allow Abraham to lay a hand on his son.
Abraham threw his wife under the bus when foreigners took a fancy to her.
He did not throw her under the bus. But she did ensure that he was not killed. They would have taken Sarah otherwise, and also killed Abraham.
It is easy to make judgments when we did not live in those times or under those customs and conditions.
Abraham turned his maidservant Hagar into a sex slave and then threw her and her/his son out into the wilderness to die.
Sarah gave her maidservant Hagar to be Abraham's wife, to build a family. ("Sarai his wife took her Egyptian maidservant Hagar and gave her to her husband to behis wife. He slept with Hagar, and she conceived." Gen 16:3) Then Hagar began resenting Sarah, not at having been given to Abraham, but once she became pregnant. Like a rivalry/competition... Hagar bearing Abraham a child and Sarah unable to do so. Then Sarah began mistreating Hagar.
That rivalry can be seen in their sons... Ishmael to Isaac at first... and that is why they were permitted to be sent away.
Neither Hagar or Ishmael (who Abraham loved, and was aggreived at being asked to send the boy away), died in the desert, nor would they have done so. God promised Abraham that Ishmael would grow into a great nation, and then God was with the boy, and Ishmael IS that great nation even today.
Abraham had the moral sense of a Taliban warlord.
I don't think you know Abraham well enough to be able to make that kind of call. I'm sure that i could either, and i won't try... but I won't try and twist things in my ignorance to condemn someone.
Abraham was loved and respected by many nations, including those not his own.
Peace,
tammy