Some examples of Popes who came from married clergy:
Pope Agapetus I (died 22 April 536) reigned as pope from 535 to 536. Date of birth uncertain; he was the son of Gordianus, a Roman priest who had been slain during the riots in the days of Pope Symmachus.
Pope St. Silverius (Reigned 536-37). Dates of birth and death unknown. He was the son of Pope Hormisdas who had been married before becoming one of the higher clergy. Silverius entered the service of the Church and was subdeacon at Rome when Pope Agapetus died at Constantinople, 22 April, 536.
Perhaps in your narrow mind. Why were Rabbis in the Old Testament expected to endure periods of continence? Why was Moses instructed by God to stay away from his wife?
And there was one Anna, a prophetess, the daughter of Phanuel, of the tribe of Aser; she was far advanced in years, and had lived with her husband seven years from her virginity. 37 And she was a widow until fourscore and four years; who departed not from the temple, by fastings and prayers serving night and day. 38 Now she, at the same hour, coming in, confessed to the Lord; and spoke of him to all that looked for the redemption of Israel.