Porn often refers to women as animals, playthings, or body parts. The idea that women are real human beings with thoughts and emotions is played down. Some pornography shows only the body or the genitals and doesn't show the face at all. You are what you dwell on. It's as simple as that.
Women are a sport.
This suggests that women are just some kind of sport. Women are property. We've all seen pictures of the slick car with the sexy girl draped over it. Hard-core porn carries this even further. It displays women like merchandise in a catalogue, exposing them as openly as possible for the customer to look at.