Miserable, boring folk
You need to get out of the city more often. We're not all boring and miserable. :)
infected to the core by Puritanism and Catholic stricture
You must ask why is there a stricture (which I think is the wrong word in the case of the Catholic milieu--I'd prefer the word "proposal" or something along that line). From the Catholic POV, the chick advertising her tits and ass as if they were commodities in a display case is selling herself short, as are the prospective "buyers" of her commodities selling her and themselves short. She and those panting over her stuff relegate her to a body, a mere animal--a beast to be feasted on. It dismisses the reality of who she really is--a person that is both body and spirit. A person who possesses an intellect and will that is meant for the good, true, and beautiful. From the Catholic POV (which is to say from the POV of reality), we kick it up a notch and realize that person is made in the image and likeness of God--goodness, truth, and beauty Itself.
The Catholic view of the body and sex--properly understood--is anything but miserable and boring...it's the very opposite of prudish. They are beautiful, fulfilling, and joyful. And, unlike, the sexual encounters of animals (whether they are human or non-human animals), the Catholic POV allows for an enduring unity of two persons.
The Puritans ( and I'm not strictly speaking about the Christian sect, but those who look upon the body and sex as objectively something less than good--including some Catholics) miss this and therefore create a certain kind of conflict within themselves.