Yes, because our genetic makeup accidentally screws up and has us default to liking the same sex. That might be a VERY rare occurance, but it isn't natural, because natural is for survival of the species and same sex couples don't breed. For 95% of the "gays" out there, it was a choice. They either wanted to be different and treated special, or gave up on the opposite sex after numerous failed relationships. My wife's best friend is a perfect example of the latter. She isn't beautiful and doesn't have a personality either. After having no luck with men, she found a group of people that accepted her so she ran with it.