Whether people get born with their sexual orientation preprogrammed, or whether its a choice they make isn't that significant really. I suspect that for some people it's the first and for others it's the second. As with other things, such as smoking.

Either way, it's their business, and people who don't feel the urge shouldn't feel entitled to slag them off for it. Roll on the day when that kind of thing won't be seen as an occasion for attacks, and won't be seen as some kind of "cause" either.

Remember when the way people grew their hair was seen as a big deal one way or another, tearing society apart? There probably still are unfortunate places where that still applies, I suppose.