Plato was definitely influenced by the much older cosmology of Judaism. Israel was never that far from Ancient Greece in terms of distance. Plato traveled widely, including a period of 12 years of concentrated travel, during which he studied with philosophers in Italy and Egypt. Keep in mind that Jews were in Egypt since at least the 13th Century BC, nearly a thousand years before Plato. There were millions and millions of Jews in the region of the Mediterranean, and as a learned philosopher Plato could not have helped but be confronted by this influential and "revolutionary" monotheistic religion. Plato's description of the creation of the universe sounds a lot like Genesis in many ways. And yet Plato never mentions Judaism by name. Not once. He does make reference to "the old fable" which some academics believes is an allusion to Judaism.
Why is this important to me? Because Plato was a "pagan philosopher." And Platonic ideas (originating with Pythagoras really) continued to ripple through history, underpinning many spiritual movements in opposition to Judaism and ultimately to Christianity. That Plato couldn't even bring himself to mention Judaism strikes me as indicative of the threat that Judaism had to his world view. Plato worshiped a pantheon of deities and extolled the virtues of the sacrifices to them. And Plato's cosmology lives on in all kinds of satanic cults which masquerade as thoughtful philosophy, like Gnosticism, Kabbalah and Theosophy.
So in present popular culture it's considered completely normal to celebrate the brilliance of Plato, and consider his wisdom at secular dinner parties and college campuses around the world. But to speak of Christianity in the same circles is considered delusional or offensive if not downright criminal. I see Platonic ideas as part of a long, long line of satanic deceptions meant to confound and confuse humanity, desperate to distract for the central truth of the Almighty God and the centrality of Christ to His design.
Basically (neo)platanism is just another =ism. It's basically Satanism.