Being homosexual is a viable option for life. We should respect gays and lesbians and give them all the rights and privileges that go with being citizens of our great country. However, if this question is asking if being homosexual is a choice, the answer to that is 'not really.' You can't help who you fall in love with and who you are attracted to.
Sure, you can choose weither to act on the attraction, but in the end, there has to be attraction. Being homosexual and acting homosexual are two different things. For instance, theoretically, a homosexual can have intercourse with someone of the opposite gender, but that doesn't mean he/she has magically turned straight. In the end, a homosexual will always be homosexual. Love who you love! (Or don't. Lust is okay, too.)
It isnt a choice; who you are attracted to. Nobody just decides to be gay, just like nobody decides to be straight. You can't help who you are attracted to. If you have chosen to be gay, then you arent actually gay. People are born that way. Same as how people were born straight.
One does not wake up one day and decide to be a homosexual; instead, I believe that one is drawn to the same sex, gradually, and without perhaps even understanding how or why. People feel what they feel; one does not choose to be homosexual any more than a person chooses to fall in love with another person. It just happens.
No one decided to be straight and no one decides to be gay. It is just how things work out and there is nothing wrong with either. It is insulting for straight people who think they have any right to tell people who they can and can't date. It isn't right for people to simply assume they can tell others how to live.
Homosexuality and other types of sexuality is a part of brain function, and it is something people are born with. It is not a learned behavior, and it can't be taken away by religious reeducation. People who believe sexual identity is an option do not necessarily know anything about psychology.