It depends on whether you believe homosexuality is a learned behaviour, in which case all that is required is cognitive behaviour therapy to sort it out

Personally, I am of the belief it is biologically innate and genetic. Scientific researchers estimate that homosexuality is present in around 10% of the population and there is a similar percentage throughout the animal kingdom - there is documented scientific evidence of it being present in over 400 species. That being the case, it would follow that a person doesn't CHOOSE to be gay, they just ARE. If sexual orientation is determined within the womb, why castigate a person just for being who they were born to be?