We can't help it, we're born this way. To the best of my observation, it is congenital. The people afflicted by it report that they have always felt that way. You can't say it's unnatural, either — there is plenty of evidence for it in the animal kingdom. And, let's face it, in 99.99 percent of cases, it's perfectly harmless. Derbyshire is referring to homophobia, not homosexuality. See the next line of text.