Smoking hot take incoming

The reason why all the porn and art is of catgirls and not doggirls or any other animal combination is because of the kawaii pedestal anime puts them on. I don't think it's just due to "top of the head ears" or anything like that. If anime was super popular on "waifu" doggirls then there would be just as much doggirl art, porn, and other content all over the internet.