>terrible fetish porn, and it's never, like, feet, or something; it's always piss poop or guro
Feet are far more disgusting than piss. Piss is sterile in the bladder and only gets germs in it as it exits the peehole, but you're going to be licking or rubbing your PENIS on that same peehole during normal sex. Feet have all kinds of disgusting stuff from the ground on them. As for poop, in India some people regularly eat cow dung. They usually cook it just like you would cook meat to kill the germs in it, then chomp down on the thick juicy cooked shit patty. Some people prefer to eat it raw just like some people eat raw eggs or meat, especially the japs with their seafood.
>they photograph actual children outside of teh interwebz to masturbate to it
Gross, but it's a victimless crime just like sitting in a stall in the women's restroom and jerking off for hours to the sounds and scents. I'm pretty sure that's not even a crime in most first world countries as long as you don't peek.