desidario,
Re: Your comment to my answer:
One's orientation drives one's attraction. If one is not oriented to desire something, one does not desire it. Scripture describes orientation as more than just desires but speaks of these as desires of your heart, what motivates/excites your innermost being.
As for attraction or orientation being a choice, you are now dealing with opinion. There is no scientific basis for stating that it is not a choice, but scripture does speak to this matter. Scripture tells us that certain desires of our hearts are sinful and need to be changed, for example:
Acts 8:21-22
22 Repent therefore of this your wickedness, and pray God if perhaps the thought of your heart may be forgiven you.
NKJV
I did a study on this a number of years ago, and due to the amount that scripture has to say regarding our orientation, it would be different to go through it on a Q&A forum, but suffice it to say that God would not tell us to change our orientation and then make it impossible. Can homosexuals become heterosexual? Again, let's look to scripture for that answer:
1 Cor 6:9-11
9 Do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived. Neither fornicators, nor idolaters, nor adulterers, nor homosexuals, nor sodomites, 10 nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners will inherit the kingdom of God. 11 And such were some of you. But you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God.
NKJV
So since we are speaking about the church, direction for what to do in this matter must be scripturally based.