Memories do not change, and change is the law of existence. If our dead, the closest, the most beloved, were to return to us after a long absence and instead of the old, familiar trees were to find in our souls English gardens and stone walls - that is to say, other loves, other tastes, other interests, they would gaze upon us sadly and tenderly for a moment, wiping away their tears, and then return to their tombs to rest.
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.