Christ's period in some ways is evocative of our own. An ancient sky-god-worshipping ethnicity having their first attempt at integrating into a secular culture, but then violently rejecting it, searching for God quite literally among the common straw. It sounds like the origin story for Flat Earth, or any of the other new faith movements we've been seeing lately, as the technocracy has spun out of democratic control.…
I think the story of Paul is the real story of Christianity. He was the one, with his partners, who went all over the ancient world and converted people to this idea. Your analysis seems to ignore all that completely. Jesus' brother James was in Jerusalem long after the crucifixion, and he and his followers thought Jesus' preaching was just for Jews. Paul had the radical idea of preaching to the Gentiles. They didn't…
But Paul's Hellenization, and just as importantly, that of the Jewish world at the time, is hugely influential, not just for Christianity but Judaism as well. The Book of Luke and Acts, taken together as a single authored unit (which it almost certainly was), as a single example, could be read as a sort of Odyssey, and it actually sort of reads that way even to godless contemporary such as myself.
This is really interesting comparing it to the development of Gnosticism across Greek, Judaic, and Christian, how they passed along a philosophic school across faiths. Almost a sort of "meta-Pythagoreanism".