“And finally contraceptive culture and pornography go hand in hand when it comes to the postmodern deconstruction of boiling everything sacred down to ‘pleasure.’ But most Christian churches do not cast a critical eye on contraception, just abortion.”
Yes, that is a key point. Whatever I might disagree with Catholics on, they did correctly point out what acceptance of contraception would lead to in society.
Not many people will maintain a firm control on their sexuality just out of a devotion to God. The impulses are just too strong. The only thing that keeps people in line are having consequences to indulging those impulses. What contraception, abortion, and pornography all have in common is facilitating people indulging their impulses while avoiding the natural consequences.