By a 43-17 vote last Thursday, the city's lawmakers approved the legislation, which allows same-sex couples to register their union with civil authorities, granting them inheritance rights and other benefits typically given to spouses.
Heterosexual couples who are not legally married can also be registered under the bill.
The previous day, the Mexican bishops' conference issued a communiqué warning of the dangers of the new norm.
"The Church has always been respectful of natural law, because it is in man's nature itself that his fulfillment is found and not just in positive laws," states the prelates' text. "The human body itself expresses the fundamental and complementary difference between man and woman. …
The bishops point out that "when the value of the family is threatened by social and economic pressures, the Church will react, reaffirming that marriage between a man and a woman is necessary not only for the private good of every person, but also for the common good of the whole of society, the nation and the state."
This initiative of law, the Mexican bishops note, "seeks to legitimize the relations of partners living together and in a veiled way hopes to give origin to a legislation that foments mechanisms that approve same-sex marriages, including the right to adopt children, as nature does not make it possible for them to beget them between themselves. A law such as this one only sees and seeks to give incomplete and momentary solutions to a problem that is more complex than it seems. …
"We propose to the lawmakers that they legislate in favor of the dignity of the human being and of the family, given that the family is the true measure of the nation's greatness, in the same way that the dignity of man is the authentic measure of civilization."