The connections such fundamentalists as you make to the austere practices mentioned here to Catholicism are false. Gnostics and Manicheans maligned matter and claimed that Jesus only pretended to be human. The condemnation here is against those who deny the goodness of creation and who would prefer to be under the yoke of the Law. The man with a vocation freely embraces priestly celibacy. Many Eastern rite priests and Anglican converts, who are married, minister in the Catholic Church.
Most deacons are married and they are Catholic clergy.
Marriage is praised as one of the greatest gifts and joys remaining to us after the fall and primordial flood. Indeed, it is seen as an analogy between Christ and his bride, the Church. As for penitential practices, even our Lord advised the practice of fasting along with prayer. We abstain from meat during Fridays in the season of Lent precisely because it is such a wonderful good. It is not a derogatory practice or a perpetual one.