How is Yahweh not immoral?

[Aractus]

Angry at whom? There are a few instances where god is angry at the israelites and brings doom upon them. I'm not referring to that (though he does get 'angry' over some pretty petty things, like picking up sticks on a Sunday). God must be 'angry' an awful lot then, considering that the book of Joshua is one big slaughter fest in his name, topped off with some survivor enslaving. God is nice to his (arbitrarily) chosen people, he kills everybody else.

Who's to say that 40,000 years ago God didn't choose all people? The Isralites represented an unbroken lineage of being in covenant with God going back to "Adam" ie the first man, that would be around 40,000 years ago or more. That's a long time to allow for the other nations to fall away from God.