I love JAV, but quite a number of Japanese Porn is perverted... especially by Japanese cultural standards.
I think porn and anime are often windows for exploration and unrestrained expression when you live in a sterile, precise, hermetically-insular culture that is heavy on the cultural value of uniformity. Now, that's obviously not true of younger Japanese below the age of 40. There's an important distinction you need to make to your raw, emotive opinion, OP:
Japanese Porn and Japanese Anime = / = Japanese People and Japanese culture.
I wouldn't want a Japanese person holding Miley Cyrus against me, it's important to make a distinction between artists and the greater public that consumes(or despises) their art.