I am certainly not making the case that Catholic morality is consequentialist. What it is is open to life.
Gay marriage proponents have always countered the argument of the dual features of Catholic marriage and its unitive and procreative facets by pointing out that sterile couples are not functionally open to the procreative aspect either.
But that is not really true. By emulating the type of procreative marriage, even sterile couples are supporting procreative marriage by remaining open to the possibility of life, God willing. And God is sometimes willing, aka Sarah and Hannah.
That depends on what you mean by "emulating". If by emulating you mean refraining from the use of contraception, then I would agree. But if by emulating you mean engaging in sexual relations, I would say you have provided no reason to believe so. You're simply asserting, perhaps unwittingly, that to refrain from sexual relations perpetually, given a sufficient reason, is contrary to the 'procreative facet' of marriage. Now, to use contraception is always contrary to that procreative facet, because contraception is contrary to natural law, and the procreative facet of marriage just
is another way of talking about the pertinent part of natural law. However, to abstain from marital relations is not against natural law, such as in NFP,
granted that there is a sufficient reason. Even though the couple refrains from sexual relations, they are not failing to be "open to life." Why is this?
Because there is a sufficient reason. A sufficient reason for something can preclude culpability for an act, granted that the act is not intrinsically evil. That's the principle of double effect, and it's used all the time in bioethics.
Now suppose -- just hypothetically -- that there is a sufficient reason to perpetually abstain from sexual relations. Would this be a failure to be "open to life"? How could it be? It is not against natural law any more than NFP is; for both are simply abstinence from the ordinary course of sexual relations. Now, if there is not a sufficient reason for abstinence, then surely that would be sinful to abstain for periods of time. But, given the hypothesis, there is a sufficient reason, and so it is not sinful.
A celibate marriage is no more of the type of openness to life as a gay marriage is.
So, I don't think I have any reason to accept this statement. Gay "marriage" is intrinsically opposed to the natural law. It is intrinsically evil. Celibate marriage is not contrary to the natural law, although a sufficient reason is required (and probably a very severe one) to perpetuate the celibacy. A vow of celibacy is a sufficient reason, granted that it is vowed under pain of mortal sin.
As an example, Sts. Louis and Zélie Martin, the parents of St. Therese of Lisieux, originally had the intention of entering into a celibate marriage. They eventually decided otherwise about a year into their marriage, with the advice of their confessor. At this point in France, Jansenism had impacted moral theology, making the requirements for the moral liceity of an action exceedingly high. If celibate marriage were in any way against the teachings of the Church, the moralists would have taught against it as scrupulously as they did everything else. And Sts. Louis and Zélie were well-informed on moral matters anyway -- being deeply pious French Catholics as they were.
And such a hypothetical vow, which is of course base in speculation after that fact, and in no way is historically supported by any known facts, would close any marriage down to the possibility of life. It is in effect contrary to the Catholic teaching of marriage as being open to life. Such a marriage would not be open to life.
The view that Mary was a vowed virgin was held by Sts. Augustine of Hippo and many of the early Church Fathers. This is not something being spun up as of a few years ago.
Celibate marriage with a perpetual vow to not consummate places the normal Catholic definition of what constitutes a marriage on its head.
This is not quite right. A marriage is validly contracted even before (or without) consummation. It even has a special name in canon law:
ratum tantum. A valid marriage which is consummated is called
ratum et consummatum. The validity of marriage, further, is treated as lawful until proven otherwise. Unless one can prove that the
ratum tantum does not exist without the intention of consummation, the marriage must be presumed valid.
Moreover, if you are holding as you are to this conception of what is "open to life," then that makes for difficulties for the PVM. That's the whole reason this was brought up. Surely you would say that Mary and Joseph were married. But does it follow from this that they consummated their marriage? Certainly not, if you admit the PVM. You might say that they were open to life because they were jointly open to Christ's conception. But Jesus was not a result of the marriage; he is, as it were, adopted, in relation to Joseph. But you would probably not say that a celibate marriage which opts for adoption is "open to life," for it involves perpetual abstinence from sexual relations. Did Joseph fail to be open to life by living out a celibate marriage, then? Although we have no indication that Joseph was not sinless, we do know that he was a righteous man. This is a solid enough indicator to say that he would not do something so seriously wrong as decide to live a celibate life married to Mary --
if in fact living a celibate life married to Mary were a wrong thing to do. But I don't think it is. In fact, I think it was morally praiseworthy and meritorious.