I find your hypothesis of a late date for the writing of the Hebrew bible very compelling. Just from a purely stylistic point of view it has a sort of grotesque gigantism which seems very redolent of the Hellenistic period. However I did find one criticism by Stéphanie Anthonioz particularly strong that you have not addressed here and that is the question of a lack of borrowed Greek words within the Hebrew text, which you might expect if its writers were drawing directly from Greek sources as is proposed. I would be intrigued to read your response to this point.
I find your hypothesis of a late date for the writing of the Hebrew bible very compelling. Just from a purely stylistic point of view it has a sort of grotesque gigantism which seems very redolent of the Hellenistic period. However I did find one criticism by Stéphanie Anthonioz particularly strong that you have not addressed here and that is the question of a lack of borrowed Greek words within the Hebrew text, which you might expect if its writers were drawing directly from Greek sources as is proposed. I would be intrigued to read your response to this point.