Japanese AV: there is one for every 200 female Actress

In the Holy Land morality, sexual life has to sneak in below the horizon. But in many countries, the development of production under the film classification system AV let the public have a sexually repressed images vent port. Excluding legal and ethical discussions accusations, AV as an industrial, AV Actress as a career, you need to interpret what the cultural level? How to understand the industry from an artistic level? Sex toys should be voted on in what eyes?