The Pope called for preserving marriage and ending same-sex marriage again:
There is also a need to acknowledge and promote the natural structure of marriage as the union of a man and a woman in the face of attempts to make it juridically equivalent to radically different types of union; such attempts actually harm and help to destabilize marriage, obscuring its specific nature and its indispensable role in society.
These principles are not truths of faith, nor are they simply a corollary of the right to religious freedom. They are inscribed in human nature itself, accessible to reason and thus common to all humanity. The Church’s efforts to promote them are not therefore confessional in character, but addressed to all people, whatever their religious affiliation. Efforts of this kind are all the more necessary the more these principles are denied or misunderstood, since this constitutes an offence against the truth of the human person, with serious harm to justice and peace.
Note that he specifically rules out Civil Unions that are “judicially equivalent” and so the Civil Unions that I propose which are defined as “marriage minus conception rights” and which affirm the unique status of marriage as a man and a woman, would be acceptable, and would be in the spirit of Peacemaking and would foster reconciliation and peace and respect for homosexual persons, without “approval of deviant behaviour” and without “making it a model in present-day society.”
My proposal would preserve God’s plan for marriage and permanently end same-sex marriage in every state. It would affirm the unique meaning of marriage and show how same-sex relationships cannot ever be marriage.
Catholics should not reject this plan just because it allows for state Civil Unions for homosexual couples, as doing so further entrenches legal same-sex marriage and misses the opportunity to preserve marriage and prevent unethical experiments to manufacture children from lab-created gametes.