Is homosexuality a disease?

To start my profile i decided to write on a topic that goes best with my name. This topic is the subject of many debates so i decided to speak my mind.
Homosexuality is a thing that has been around for quite the long time , but unlike the old times when it was considered an anti god thing, in the past few dozen years it has become more widely accepted.
A lot of old fashioned people and supporters of the old patriarch lifestyle say that it is a disease a should be treated as such. To support this claim they argue that it is unnatural and that it can't be found in nature and animals never show any signs of the "disease".
On the other hand people who support homosexuality claim that it is completely natural and that it is a matter of choice and preference. They also argue that any person should be able to choose who they lile and have complete liberty at the matter in question.
To conclude i would like to add my personal opinion. I belive that the only problem with homosexuality is that even in theory it is imposible to maintain the human race. By this I mean that if every person in the world was homosexual then there would be no more reproduction and we would become extinct within 100 years. This is why i do not support it and think we should make effort to exterminate the illness.
-thecontroversial