Somehow you're both partially wrong. There are people who have been badly abused by the porn industry. There's always a need to make sure people are safe. But there's nothing wrong if someone wants to willingly perform in pornography.

I mean they still have their body after shooting porn so they're not really selling their body more than let's say a construction worker

All work is selling your body for money, sex work is just using it for sexual pleasure instead of selling burgers or making equipment.

Why are you assuming that it is? Maybe it's because I'm not a religious person, but I don't see anything morally wrong with sex work. Whether someone is doing it against their will is a separate issue, but that's not an assumption I'd make without other evidence.

If you really are coming at this issue from a religious point of view, then there's no point getting into a discussion here since I'm not going to change your mind on that (nor do I care to; believe what you want). Otherwise, I'm curious what your actual arguments might be.