Ok, I can understand that reasoning. Thank you for your response.
In the time of Christ, there were those who erroneously looked upon John the Baptist as the "Messiah" and John the Baptist was only Jesus' cousin! Ergo the rationale behind the womb of the Virgin Mary being providentially reserved by God the Father for no one but Christ.
Those who embraced John the Baptist as messiah and regarded Christ as the "usurper" were members of a sect begun by a Samaritan heretic named Dositheos after the death of John the Baptist.
Dositheus' disciple, in turn, was none other than the Samaritan gnostic heretic Simon Magus, who is mentioned in the Acts of the Apostles. Simon Magus, who was baptised into the Christian faith before he apostatised, is called "the father of all heretics" and a precursor of antichrist because he set himself up as a messiah.