So whoever it was that said it's just a conspiracy or anything along those lines just hasn't got a foggy clue.
Some things are very hard to understand without direct experience. If I were the sort who could pick up a drink at dinner and drink half of it and then go home, I might never be able to understand that some people who are alcoholic would walk by the table after I'd left, see the half empty drink, be shocked at the waste, drink it down and wake up two weeks later a thousand miles away with one shoe and no idea of what had happened. That alcohol doesn't affect some people that way doesn't mean alcoholism doesn't exist.
Now, my drinking never got that bad, but I get it. Same with sexual addiction. The person who sees everyone around them looking at pornography occasionally may never get it that some people look at porn and then come to 12 hours later wondering where the day went... again. I really get that.
I heard a story on the radio years ago that I've always remembered. The speaker was talking about fiscal responsibility and a caller asked "why doesn't everyone practice fiscal responsibility?" The answer was "for the same reason that people don't jog every morning until after
their first heart attack."
Same deal with addictions - try to tell someone who's young and invincible that what they are doing now may someday turn and kill them and they just don't get it. It is human nature to keep doing what ever we are doing until the consequences are bad enough to change. If the consequences aren't bad, why change? That is why part of the step one of the 12 steps involves the idea of "raising the bottom." I behaved in just plain crazy insane ways and was convinced there was no problem - "I'd know
if there was a problem with my mind
The books "Out of the Shadows" and "Don't Call It Love" are excellent. I've also found it very helpful to read "Alcoholics Anonymous" (the Big Book), which is not specifically about sexual addiction, but deals with sex a lot.