I’ve typically found that people trying to relate ancient mythologies usually grossly exaggerate the similarities, and ignore the obvious irreconcilable differences. But it’s worth noting that a LOT of Greek and Roman mythology came about long after the Jewish faith. Often, such similarities are presented as supposedly pagan origins of Christianity and Judaism*; I’m glad this article doesn’t do that. Frequently, Romans would find certain aspects of Christianity appealing, and attach such elements to older mythologies, making them appear to have older Roman origins.
(*for instance, Christmas predates the move of Saturnalia to the December equinox; Easter even predates In Sol Invictus by centuries; Isaiah predates Scorates.)
St. Augustine explored many pagan religions, more prevalent in his day, but his capacity to search, think, reason and question different belief systems, eventually led him to accept the Catholic church. St. Augustine then took Christian thought into greater levels of understanding.
There are many people today that are genuinely searching for the truth, too but unfortunately some of their professors, media, hollywood, churches, are spinning the myths into yet another myth - that Christianity is based on Paganism.