Man, made in the Image of God, is three parts, a trinity: soul, mind, and flesh. Man is fallen. Two parts of fallen man are inherently good. One is not.
The sons of Noah were three. Two of the sons were inherently good. One was not. Two sons were blessed. The generations of the one who was not are forever cursed.
A curse removed only by the Payment of the Begotten Son.
When man is a child, his flesh is weak and he is innocent. When a man comes of age, his flesh is strong and strives to attack.
That which is evil will always attack that which is Good. Good is repellant to evil. You only hate and attack what you know is better than you. You mock it. You write books to scandalize it. Ham mocked Noah.
You pity, console, or tolerate what you believe is more depraved.
Throughout history, the enemy of man's soul and mind is his flesh. Throughout history, the enemies of the sons of Shem and Japeth are the sons of Ham.
Throughout its history, the Catholic Church has vehemently defended man’s mind and precious soul by humbling his flesh. Throughout history, the Church has humbled and converted the sons of Ham.
The Church fights sin because flesh cannot. The Church alone builds the powerful mind and spirit that makes man live by more than bread alone; an obedient mind and spirit that take precedence over the disobedient cravings of the flesh.
The Church fights the godless, because the godly cannot. The Church alone builds the powerful universal organization that protects the meek and unfortunate against the rich and powerful; dominating the pagans who would otherwise dominate.
As with all things Supernatural, the answers are clear and easy to understand. If you call a sin a “sin”, the sin will not spread. If you do not call it a sin, it will spread rapidly and destroy. The Catholic Church calls a sin a sin.
Any societal attempt to overcome the Church’s eternal stance on abortion, fornication, sodomy, euthanasia, suicide . . . is really an ongoing attempt to prevent the Church from calling a sin a “sin”. If, as Chesterton urged, we back up enough to see the enormity of the victory of the Church over all vices throughout the last two thousand years, we can suddenly understand our place as Catholics in the universe. We should see that we are now, after a long sleep, waking up to the same ancient heresies, brought forward by the same pagans, left too long to smolder and now raging all around us.
The answer is never-changing – calling a sin a sin will either enrage or humble the flesh. Rage will eventually burn out. Flesh, once humbled, bows to the will of the mind. The mind, unencumbered by temptation, will focus purely on communing with, pleasing and worshipping its Creator.