Daniel Avila nails it in a recent article for The Pilot, of the Archdiocese of Boston. When challenged by the teaching of an all male, heirarchichal priesthood, instead of just blindly going along with the status quo, he looked it up! In reading the document he states:
It struck me upon reading these documents just how important sexual difference, and the anthropological reality of being human through two means, male and female, are to the Church’s sacramental understanding of the priesthood. As this column has indicated in the past, the same regard for sexual difference and the male and female identities plays a central role in the Church’s understanding of marriage and sexual attraction.
One of the elements of the teaching in “Inter Insigniores” is that holy orders, being a sacrament, must contain within it a sign that is “perceptible and which the faithful must be able to recognize with ease.” The Church understands the ministry of the priest to be the unique sign of Jesus, truly present. That is, “the bishop or the priest, in the exercise of his ministry, does not act in his own name; he represents Christ, who acts through him.” To be effective as supernatural signs, the sacraments must “represent what they signify by natural resemblance.” Jesus “was and remains a man.” Thus, the presence of Jesus in the priesthood is obscured in a fundamental respect if the priest is not also a man.
Now, if we could just get people here to read the document, it would do wonders.