Using the term * CHOICE* wasn't to apply they chose to be this way, It's meant in saying they CHOSE to have a life partner to share it with. You can be straight, gay or what ever and not *CHOSE* to share your life with a person.
Many people in the world are gay but never go on to have a relationship with the same sex. As many are straight and never go on to share their life with someone.
Either way, I would still be disappointed, but I love my children and will stand by them.