Probably the wrong question. From an orthodox Christian understanding, we are all born into sin, as a result of human rejection of God in the Garden of Eden. Sin did something to us, as humanity, right? You don’t have to be confused about your gender or sexuality to wrestle with your flesh. Paul goes on and on about this in many of his letters.
Gal 5. “But I say, walk by the Spirit, and you will not gratify the desires of the flesh.“
Uh oh. We’re all already screwed.
“For the desires of the flesh are against the Spirit, and the desires of the Spirit are against the flesh, for these are opposed to each other, to keep you from doing the things you want to do.“
And it gets worse apparently.
“But if you are led by the Spirit, you are not under the law. Now the works of the flesh [a list of really bad things are coming…] are evident: sexual immorality, impurity, sensuality, idolatry, sorcery, enmity, strife, jealousy, fits of anger, rivalries, dissensions, divisions, envy, drunkenness, orgies, and things like these. I warn you, as I warned you before, that those who do such things will not inherit the kingdom of God.“
Like I said. WE ARE ALL SCREWED. Humans. All of us. Good news incoming:
“But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law. And those who belong to Christ Jesus have crucified the flesh with its passions and desires.“
Someone can say “I was born gay.” We can debate it. But what one can’t say, clearly in scripture, is that “I was born gay, therefore I can do whatever I want. Therefore the Biblical teaching on sexual expression being most healthy between one man and one woman within the covenant of marriage doesn’t apply to me.”
We do have to accept that our flesh is automatically at odds with the Spirit. And further, the indication in scripture (and let’s get real, in the natural world all around us) is that the FLESH manifests itself in really negative ways.