OMG. Is this really a serious question? I'm sorry, this post just seems to validate that many people in the world are both ignorant and arrogant. Obviously, your question would be more appropriately answered in the LGBT forum section. It seems you are just seeking validation on your personal ultra conservative views posting this question in the religion forum.
Disorders of sex development (DSD) is a real thing. Even if people may not show external visible symptoms at birth or puberty, you must keep in mind that many DSD people could be on the spectrum which is very hard to diagnose.
https://en.wikipedia.org/wiki/Disorders_of_sex_development
I'm a female heterosexual with visible external signs of hyperandrogenism since puberty and I am still having a hard time getting a diagnosis. Besides the few people who might 'experiment', homosexuality is largely genetic and something that they cannot 'fix' with religion.