Even if I accepted that Jesus - like almost every other prophet on record - was born of a virgin I cannot think that this proves the divinity of his father or the truth of his teachings. The same would be true if I accepted that he had been resurrected.
You know it's ironic to me that Christians want to keep the Ten Commandments in our schools because Christianity has abrogated four of the Ten Commandments. For example the Sabbath day according to the Ten Commandments is Saturday not Sunday. And the reason is because God rested not because Jesus was resurrected.
Red Letter Christians believe in the doctrines of the Apostle's Creed are convinced that the Scriptures have been inspired by the Holy Spirit and make having a personal transforming relationship with the resurrected Christ the touchtone of their faith.