[Question:]{.underline} What is the logic behind banning homosexuality?
[Answer:]{.underline} The Bible regards this sin of the Sodomites as a sin crying out to heaven for vengeance (Gen. 18:20), and it was specifically forbidden as an abomination for the Israelites: “Thou shalt not lie with mankind as with womankind, for it is an abomination” (Lev. 18:20). This is repeated in the New Testament, for St. Paul states that the effeminate and those who lie with mankind shall not possess the Kingdom of God (I Cor. 6:10).
The reason in the natural law is clear. It is a perversion of man’s sexual powers and a gross abuse of the sexual pleasure. Every pleasure that God gives to man has a purpose, namely to aid man to accomplish some function, either for his own personal good, such as the pleasure attached to eating, or for the good of mankind, such as the pleasure attached to the marital act.
Homosexuality is perverse and opposed to the natural law precisely because it turns the pleasure away from its God-given purpose, the procreation of children, for the good of mankind. Like other sexual sins, it becomes a purely selfish, pleasure motivated experience, that serves no reasonable purpose, and is consequently immoral. However, it adds to the immorality of adultery and fornication, the gross disorder of seeking pleasure from a person of the same sex, with whom procreation is impossible. It is the seeking of selfish satisfaction without any possibility of attaining even the union of man and woman in the flesh which was decreed by the Creator at the beginning of mankind. It is the deep-seated awareness of this perversion of the natural order that makes this sin so repulsive to a person whose psychology has not been perverted by pure hedonism or abusive experiences.
It is for this reason that any morally upright society, regardless of whether it is Catholic or not, will ban the practice of homosexuality as a crime and a curse. This does not, however, mean that it will lack compassion for those who struggle, unfortunately, against an attraction towards the same sex engendered by some defect in their emotional formation, nor that it would allow any kind of victimization or persecution of them.
Answered by Father Peter Scott, SSPX.