I can imagine any number of unsure Catholics asking this question, or again any number of Protestants. Some may ask because they disagree with the Church's teaching here, but want to know where lies the point of departure; others may ask because they agree, but cannot defend their position. As it turns out, this question was posed by Miss Leah Libresco: an atheist, though one who prides herself on arguing in good faith. The exact words which she used are:
"I want to know why they [orthodox Catholics] think gay people are required to be chaste, why homosexual relationships are ‘intrinsically disordered.’...It’s not just a question of differing religious premises; I can’t wrap my head around how some of these arguments work within a Catholic framework....if Catholics want to convince me that active homosexuality is incompatible with the faith, I’d like to hear about why my objections to the above don’t cut it or hear some new arguments about why different means disordered" (all emphasis in original).I would like to note that this is in fact more than one question, though the different questions posed here are interconnected. The first questions might be rendered, 'What reason(s) do Catholics qua Catholics give for saying that romantic homosexual relationships ("RHR") are sinful?' That is, if we assume that Catholicism is true for the sake of argument—excepting just this one moral principle, that RHR are sinful—then why are RHR sinful? The second question might be a bit broader, which is rendered 'What are the implications of different which makes it disordered?' I will try to give "reasonable" answers to these questions, but it should be worth noting up front that "reasonable" does not exclude "dogmatic" .
Read the rest a the Nicene Guys site.