Does Horus disprove Jesus' once existence?

Horus was born of two gods, Osiris and Isis, neither of whom was a virgin. It was only in later mythology that he was thought to be born of a virgin, have 12 disciples, and come back from the dead. Later, as in after the writing of the synoptic Gospels of Christianity. Meaning if there was any borrowing, it was going the other way. So no, he doesn't in any way disprove Jesus.