The causes and origins of porn addiction

Hello to all the inhabitants of this wonderful site! I'm new to this site. I read a lot of topics from this forum. It's terrible and terrible to see how this poison pornography destroys human lives! Found many ways to fight this infection. But I have many questions related to pornography! To whom is it profitable? Why is not pornography being fought? Why is pornography so easily accessible? Why do the authorities of many countries legalize this infection, which is hundreds of times worse than drugs and alcohol? Pornography and prostitution bring huge profits to crime! Why is there no fight against this plague? Who will answer these questions and suggest ways to combat this leprosy of mankind?