Actually, women do.
My next door neighbor's wife had a porn addiction. It led to multiple affairs with men she met over the internet.
Her husband didn't have a clue.
Most men don't realize it can be a problem for women too.
It sounds like a "cheating on her spouse" issue was the real problem.
Pornography is far more prevalent among men than women. Women are usually not visual in their approach to sex. There are exceptions to every rule, but porn addiction is far more common among men.
It is a private act and society has to decide when freedom is causing too much trouble for the rest of us. Most people who use porn do it in the privacy of their homes, with no intrusion into the lives of anyone else. It's the largest selling product on the internet. Most people use it and don't bother anyone. That's a fact. It's just like guns.
I am a baby boomer and remember the squalor of the neighborhood porn business. They are pretty much gone, the smut shops, massage parlors and adult businesses of my day. People prefer to use these materials in private. I do not use pornography myself, but find it very harmful to crusade against what others can read and view in privacy. Eventually the fanatics will come after what I read and view in my home, including the Bible.
We are already extreme in these matters. Notice that the Andy Griffith Show and I Love Lucy now contain content ratings when the shows begin. That is absolute whackiness.
And you believe that without porn she would have been an honorably and faithful wife? Incredibly naive.