I answered your questions, now its your turn:
1. If they are born heterosexual (i.e. attracted to the opposite sex), why exactly would they choose to be homosexual?
2. If they choose to be homosexual (i.e. they choose to be with the same sex instead of feeling an attraction that is caused by their bodies/hormones etc) why do they need treatment if they can just choose note to be anymore?
3. Why would they choose to be homosexual if they are actually homosexual and they know that they would be persecuted, especially in certain countries?