We know from 1 Corinthians:10:13 that all temptations (including homosexuality) can be forsaken and that God has provided a way of escape. Paul had already noted this in 1 Corinthians:6:11. The Scriptures do not support speculation that a tendency toward a particular sin is the same as being born a full-fledged practitioner of it. No child born to a line of drunkards is born a drunkard. The weaknesses and temptations are there, but choices are also there all along the way. The issue is not whether a person is born that way, but that there is a way whereby we may change.
"There hath no temptation taken you but such as is common to man: but God is faithful, who will not suffer you to be tempted above that ye are able; but will with the temptation also make a way to escape, that ye may be able to bear it."