[balfirevic]

It should be made clear that "unnaturalness", when used by opponents of homosexuality (and in many other debates of moralistic kind), is used in a question-begging way which carries no information at all and is nothing more than a shorthand for "I don't like it and I think it's bad". But, alas, it does sound like it has some meaning beyond that, which is why it's used in debates in a first place.