I strongly agree with your first comment, but on the second one I have a different ‘view’.
You could call it “a loosening of your morals” and once you’ve done something, it’s easier to repeat. Once you steal, once you lie, once you cheat, etc. Broken Commandments.
Those who watch porn become bored and crave more and ‘different’ types of porn. Nothing good can come of it.
But here's what I find more disturbing: men like porn because it involves a gorgeous naked female with a mind like a man. She isn't interested in a relationship, about feelings, about her partner's mind or even his money. She wants SEX, and lots of it. In any form imaginable, and then some. Just like his drinking buddy.
The flip side is the romance novel. The man in a romance novels has a buff body, tight pants, no shirt, and the mind of a woman. He's more interested in feelings, relationships and his partner's mind than he is in sex. The female reader is looking for a stud with her best girlfriend's mind.
Both environments lead to dissatisfaction with a normal partner of the opposite sex.
That describes my first marriage.
My husband's occasional Playboy magazine then mushroomed into hundreds and then thousands of dollars of mail-order porn. The final straw for our marriage was when he was leaving work to go to massage parlors for “massages”. I was working as a nurse at the time, and he could spend as much as I made in a day on one massage. He lost his job about this time, and I suspect that it was because his addiction was interfering with his work.
He addiction was untenable emotionally, physically, spiritually, and financially. I was reduced to being a mere object and tool in his blinding addiction. He flat out refused to get help and was in complete denial.
He did remarry. My son tells me that his second wife also threatened divorce. I suppose the prospect of a second failed marriage was enough for him to finally face up to his addiction and seek the help he needed. They are still married after more than 20 years and 3 children.