Your comment assumes a conclusion that not everyone agrees upon. In fact no scientist supports your comment at all. You base your conclusion on words you read that were written by a "Yahoo Contributor" who supports same-sex marriage.<quoted text>
Gravity doesn't violate evolutionary mating behavior for one.
Homosexuality violates evolutionary mating behavior. Without knowing why, a supposed professional organization supposedly based on science proclaimed it normal.
An honest person would say BS, which is why you don't.
The scientists that have studied homosexuality have determined it to be a natural and normal orientation, not only among man, but also throughout nature.
Bottom line, homosexuality is as natural a phenomenon as gravity. The origins of both phenomena are unknown.
The lack of full understanding of a naturally occurring phenomenon does not indicate that it is unnatural or a disorder.