Wikipedia defines pornography as
: "...the portrayal of
sexual subject matter for the purpose of
sexual arousal. Pornography may be presented in a variety of media, including
books,
magazines, postcards, photographs, sculpture, drawing, painting, animation,
sound recording,
film, video, and
video games."
So it is in a sense an "industry" that caters to people who are desiring to be aroused sexually. Connected with that there is I believe an exploitation of young people .... Children are also at risk of being exploited by pedophiles. In some countries exploitation of children is well documented.
Again per wikipedia:
Dolf Zillmann asserts that extensive viewing of pornographic material produces many
sociological effects which he characterizes as unfavorable, including a
decreased respect for long-term, monogamous relationships, and an attenuated desire for procreation.[24] He claims that pornography can "potentially undermine the traditional values that favor marriage, family, and children" and that it depicts sexuality in a way which is not connected to "emotional attachment, of kindness, of caring, and especially not of continuance of the relationship, as such continuance would translate into responsibilities"[25]
Additionally, some researchers claim that pornography causes
unequivocal harm to society by increasing rates of sexual assault,[24][26] a line of research which has been critiqued in "The effects of Pornography: An International Perspective" on external validity grounds,
[27] while others claim there is a correlation between pornography and a decrease of
sex crimes.
[28][29][30]