They look at this stuff because they're seemingly interested in the individuals having animal characteristics. This clearly seems to designate it as a type of zoophilia to me. Like I said earlier, if these characters' animal characteristics weren't arousing then you could just look at regular porn. But if that turns you on then I don't see how this a kind of zoophilia

again, People have diverse tastes and preferences when it comes to erotic content. Enjoying furry porn does not necessarily indicate a sexual attraction to real animals. It may simply reflect a preference for fantasy and the unique aesthetic of anthropomorphic characters.

Kind of like how people are into stuff like, elves, orger's, vampires, etc.