Catholic sexual ethics are as fully reasonable today as they were in the time of St Paul. In fact, the natural law understanding of human fulfillment is inherently intelligible even without a theistic framework.
It is morally indefensible for Catholic institutions to recognize and incentivize same-sex marriages by extending marriage benefits to employees who declare themselves legally married to a person of the same sex.
The equality that demands same-sex marriage demands that all social recognition of the distinction between mothers and fathers—of the paternal and the maternal, the masculine and the feminine, and of the sexual identity of everyone as male or female—must be systematically expunged, to be replaced by the lies and seductions of “gender identities” on the ever more blurry rainbow spectrum.
In an article adapted from his debate last week with Peter Singer and Maggie Little on the moral status of the “fetus,” Professor Finnis explains that outside of medical contexts use of the word “fetus” is offensive, dehumanizing, prejudicial, and manipulative. It obscures our perception of moral reality. Moral status is not a matter of choice or grant or convention, but of recognition, of someone who matters, and matters as an equal, whether we like it or not.