Is physical interaction the line, and you're okay with anything that precedes it?
No. Even visual interaction is sex. Eg. CAM. Or even voice for that matter Eg: Phone.
Are the emotions what matter, and the physicality is irrelevant?
Physicality is relevant and matters. Emotional is deadly, will lead to break up
Is sexual desire for another enough to be considered infidelity, making infidelity inevitable?
Yes if that troubles the sexual desire and experience with current partner
Is it un-useful to draw lines, is it innately a nebulous affair?
Sorry I dint understand this question
Are porn apologists taking the easy low-ground, when we're capable of better? I strongly feel that most individual takes easy ground. A sex life consisting only of the lover/spouse with no others in the form of pictures, videos or live presence is IDEAL and is NOT IMPOSSIBLE. And if that is HOT and not BOREDOM, that society is SUPERFICIAL. sounds like fairy tale though.
Are we, over time, shifting our societies values fundamentally?
over time yes values shift
over distance yes, values vary depending on where you are
over lifestyle, yes. even in same place during same time, based on your life style (career, profession, status, etc) values differ
It even changes over preference and beliefs
Some are ok to watch amateur porn, made not by buying, forcing or cheating people
Some think watching Professional porn is ethically ok, as it is business
Are we going to a better or worse place? ....Or will we be relatively the same?
I am practically a pervert. Until yesterday morning I drool at every possible visual (art, photo, people) who are sexy. But I want to change. I will try to keep all sexy thing between couple-hood and see how long I could make it
Is pornography more positive than negative, or a necessary evil?
Porno is a positive evil.
Positive because a lot of people have very good time alone or with partner, adds up fantasy imaginationa and makes thier sexual experience more gratifying. it releives urge and releases.
Evil because it involves prostitution or that kind of people exist. Let us be clear Art, Nudity and Porn are totally three different things. If we can be perfectly comfortable to introduce our sister or neice as "She is a porn star, she is very good at it" to our friends or colleagues... We dont have to consider it evil. I hope I answered it without hurting or offending anyone.
Are men and women to be held to different standards, given the observable trends?
Not at all, it got to be same standards