It's going to be more a 70 - 30 rule. Monotheism was not absent in the ancient world outside of the Jews either. Zoroastrians, Dacia's Zalmoxians, Caucasian Mithrasites, Tuistics were all Monotheists as well and some strands of Buddhism in the early years also carried some pro-Monotheist thoughts as well. Despite being Polytheist dominated, ittl will have visible monotheist faiths as well.Indeed not. Honestly, I’d say in this TL monotheism will remain an exclusively Jewish thing in Europe and the Near East.