Neo Assyrian empire were destroyed by Babylonians and culturally they were very similar at this point due to millenia of history they had with one another.

I don’t think there was any protosocialist revolution in Sumer, it was more or less the decay of primitive communism as the palace economy developed into full blown theocratic monarchy and this in the empire. I mean right before Sargon conquered Sumer, one of the local rulers (Lugal-zaggesi) managed to finally unite it and it would not be probably end since even his titulature suggest imperial ambitions, and he had at least one predecessor who did expanded beyond the Sumer. But alas we will never know, Sargon did to him what he probably wanted to do to Sargon, just faster.

Ah, and it was during the Zoroastrian(Persian) influence that the Hebrews started to bootleg monolatry.

I wonder how much influence that had, since Achaemenids weren’t pushing their religion on their subjects.