It is not homosexual desires that is the sin here.
As an ex-homosexual, I know first hand what the struggles of this person are. I too looked for human relationships, and human power to make me happy. It would last for awhile, and then it would fail, and I would fall back into the same depressive, drinking, drugging etc, until the next one came along. This was frustrating, as I was looking for true love and happiness. I was really addicted to falling in love and was a good sprinter, but those relationships rarely last with no good foundation.
After coming to know Christ the desire for the same sex left me in the blink of an eye, along with alcohol and drugs, i finally found the True Love I had been looking for in all of those bars and other places my whole life. The enduring love of God.
I understand that homosexual acts are disordered, as they never have life giving qualities and are scientifically unnatural. place 1 million homosexual couples on an island with everything they need to survive and in 100 years, you have all dead homosexuals. Place only ten heterosexual couples on that same island for only ten years and you have a village, flourishing and growing.
I also understand that 100% of those wanting to escape the homosexual lifestyle had a non existent father figure, a bad father figure who was not present or abusive, or were sexually abused by an older male figure when they were very young.
This in no way means that all single parent children will be homosexual, but it does mean that the normative family relationship with good parents certainly decreases this trend. As our society becomes more and more saturated with pornography, internet, television and work, and materialism in general, the rise of homosexual children will grow by leaps and bounds, because the normative healthy family is becoming less of the norm and more of the exception. A society is only as strong as the families that occupy it.
It doesn’t take scripture to prove what homosexuality is caused by or how it is disordered, it takes simple science and facts concerning the results of homosexual acts.
Homosexual persons are called to chastity, anything else would be unnatural and against the natural moral law. They can receive and give love to many many others, and be in service to God and others, just as those heterosexuals who are not married. no different. Any sex outside of a marriage between a man and a woman is unnatural and out of context, therefore a sin, or defect of the human character as it was originally intended to be.
i hope this helps. peace, Justin