Pornography just like prostitution is a product/behaviour of the sexually representative system that evolved around patriarchal exploitation of women. Sexual fetishes can be also traced to unsustainable value system with certain behavioural-psychological conditioning since birth.
Sex is not service or product. You cannot seem to go beyond the commodity based view of human sexuality ingrown in our culture. No one is going to provide you sexual services as it is not something to be served as a product unless someone would volunteer to offer having sex with someone who is for example disabled. In RBE sex is voluntary agreement between people not a commodity.