[…] the church’s moral crisis derives uniquely from its abandonment of clear, unequivocal, strict teaching on moral matters, and from overly permissive attitudes toward homosexuality in particular. He does not want to consider the ways in which its traditional teaching on sexuality—emphasized incessantly by recent popes—has contributed to the present crisis. The modern church has boxed itself into a terrible predicament. Until about half a century ago, it was able to maintain an attitude of wise hypocrisy, accepting that priests were often sexually active but pretending that they weren’t. The randy priests and monks (and nuns) in Chaucer and Boccaccio were not simply literary tropes; they reflected a simple reality: priests often found it impossible to live the celibate life. Many priests had a female “housekeeper” who relieved their loneliness and doubled as life companions. Priests frequently had affairs with their female parishioners and fathered illegitimate children. The power and prestige of the church helped to keep this sort of thing a matter of local gossip rather than international scandal.
When Pope John XXIII convened the Second Vatican Council in 1962, bishops from many parts of the world hoped that the church would finally change its doctrine and allow priests to marry. But John XXIII died before the council finished its work, which was then overseen by his successor, Paul VI (one of the popes most strongly rumored to have been gay). Paul apparently felt that the sweeping reforms of Vatican II risked going too far, so he rejected the pleas for priestly marriage and issued his famous encyclical Humanae Vitae, which banned contraception, overriding a commission he had convened that concluded that family planning and contraception were not inconsistent with Catholic doctrine.
Opposing priestly marriage and contraception placed the church on the conservative side of the sexual revolution and made adherence to strict sexual norms a litmus test for being a good Catholic, at a time when customs were moving rapidly in the other direction. Only sex between a man and a woman meant for procreation and within the institution of holy matrimony was allowed. That a man and a woman might have sex merely for pleasure was seen as selfish and sinful. Some 125,000 priests, according to Richard Sipe, left the priesthood after Paul VI closed the door on the possibility of priestly marriage. Many, like Sipe, were straight men who left to marry. Priestly vocations plummeted.