I upvoted you because your comment is interesting, but how do you justify the above statement other than "it's what some prejudiced people, including myself, think"?

Have you validated this by talking to people who work in the porn industry? Have you read some research that validated this?

I'm questioning it because it seems like a stereotypical and potentially bigoted belief and is very possibly wrong. People are different. Some people get off on having sex with their life partner. Some people get off on being surrounded by a bunch of guys jacking off. Som people get off on having sex with animals. Some people don't get off and they're ok with that. It's fairly plausible that some people get off on doing porn, and it makes sense that many of those would work in the porn industry.