@Sarg -- if murder is a choice, according to you, then so is homosexuality. both are actions that result from feelings....or feelings that provoke actions....either way, same beast. You just don't like that society has distinctly condemned one choice/action, and you support the other.
You will note that I have not made a statement in support of or against homosexuality...I'm just examine it from 1. It's role (or lack thereof) in evolution and natural selection/survival of the fittest, etc, and 2. It's comparison to other behaviors/feelings.
@Yonni...humanity has nothing to do with what is natural, or what is evolutionary. Sad little man...you are letting your feelings get in the way of a logical argument. In fact, "humanity", or civilization, etc is perhaps the most unnatural thing on the planet.
Take a look at early man, hunter/gatherers, etc, before technology and such invaded and then talk to me about humanity. "Humanity" as you are implying is a false construct that has only been made possible because of the excess of wealth...i.e. cheap sources of energy...that allows mankind to have comfortable living and cheap food (for the most part), which in turn allowed man to expand into more useless (from an evolutionary standpoint) endeavors....like arts and sports....hell, even medical science that extends life and conquers disease is anti-evolutionary and should be an abomination to any true evolutionist, as it truly corrupts the species by allowing those to survive that shouldn't, and thus allows them to pass on their faulty genes.
Now...might I refer you all to that fantastic movie: "Idiocracy"...which represents a not-too-distant America...