As I read all the comments, I've come back to where I've been on so many questions about the Bible and God's Laws. There are some questions that we can never have definitive answers for this side of Heaven.
When you describe your friend, Lynn, who was obviously born with effeminate characteristics, I
wonder why God allowed that, knowing of His hatred for the sin of homosexuality. God is the maker and giver of life. He knows us even before we are formed, so could He not have prevented that? And yet, we know that sometimes He allows things to happen that He may prove that His strength is made perfect in our weakness. Could homosexuality be one of those "thorns" He gives just as He allows cerebral palsy, mongoloid births, etc?
It seems hard to understand, but perhaps homosexuality does occur at birth. However, as Paul wrote: His grace is sufficient for every situation; even refraining from practicing that which results from being born a homosexual. There may be no answer to this paradox that God created homosexuals, but requires that they refrain from engaging in homosexual acts.
Sometimes we have to content ourselves with: "Oh, what a wonderful God we have! How great are His wisdom and knowledge and riches! How impossible it is for us to understand His decisions and His methods! For who among us can know the mind of the Lord?" Romans: 11:33,34.