Ok, thanks for expanding. However, while you have given me a list of concerns that may be related to the prevalence of porn, you haven't really explained what you would do with porn. Even if it is directly responsible for all those concerns, would you ban porn? Would you make it illegal? What are you going to do about it?
As far as I can tell from your posts, you are very worried about porn, particularly on young people today, and on the effect it may have on their behaviour. You seem to be discussing this on this forum - maybe to educate people about the negative follow-on effects of viewing porn?
I could argue each concern is not directly the result of viewing porn. But, I going to assume each one is true. Even if it is so, how do we handle something without limiting people's freedoms? If a person is old enough to make decisions for themselves, who are we to dictate what they can and cannot view? I know of some places that do this. One of them is called China. Are you really advocating we take an approach of censoring everything that we personally do not agree with?
Are you advocating scare tactics? Tell people just how bad viewing porn can be for them? Thats commendable (assuming, of course, you really can link porn to issues such as abortion and STD's). However, history will show us that such tactics are usually ineffective. People know smoking is bad for them. However, there are still smokers. You may find a similar effect if a large-scale scare compaign against porn is put into motion.
So, before I go further, what would you do? I know I take responsibility for myself and regulate my own viewing habits, but I would be profoundly uncomfortable with making such decisions for others.