The Vatican has extremely strong views on homosexuality. They believe it is completely wrong and there is no way to justify it. This is very similar to what most religions believe about homosexuality. Specifically, they have a very similar belief on homosexuality that Muslims do. Muslims believe homosexuality is morally wrong and strongly against their religion. Buddhists, overall, also have strong, similar beliefs on homosexuality. The Dalai Lama in 1997 came out saying homosexual sexual relations can be "of mutual benefit, enjoyable, and harmless". (Conkin)
The Vatican believes, “Homosexuality is a troubling moral and social phenomenon”. (Ratzinger and Amato) They also believe that since this is concerning natural moral law, that this does not just affect Christians, but it also affects everyone who is dedicated to supporting the common good of humanity.
The Vatican believes that homosexuality is wrong because it does not benefit society. They cannot procreate; therefore, they are not contributing to society as a whole. This is an example of Kantian Ethics. Kantian Ethics believe that something is only a good act, if it is being done out of duty. For example, getting married could be a good act because the man and woman are getting married to reproduce for their moral duty to society. The Vatican supports their views according to text from the Bible saying, “Be fruitful and multiply”. (Gen 1:28)
The Vatican is also scared that if marriage were to be considered between same sexes, rather than just man and woman, that it would make marriage lose it’s value. It wouldn’t be as important if it weren’t so sacred. Ratzinger and Amato put that belief best when they said, “Lifestyles and the underlying presuppositions these express . . . tend to modify the younger generation's perception and evaluation of forms of behaviour. Legal recognition of homosexual unions would obscure certain basic moral values and cause a devaluation of the institution of marriage.”...