Do those factors have the same meaning when someone would rather not be e.g. a cleaner or an orderly at a nursing home? Those jobs are physical and not so pleasant. They pay much less than prostitution. Yet, many people are so employed.

Prostitution is still about selling what is most intimate, not really the same.

Also, how are we supposed to reach gender equality if one gender's body is for sale as a matter of routine ?

Note that I still agree with your point on being a cleaner, that's why I think universal income is a good idea.

Coal miners sell their body for their job too. There are plenty of jobs that will destroy your body but pay better than average for your skill level.

At the end of the day when an adult makes the decision to do a particular job because it pays better than the alternative we can't automatically count them as a "victim". It robs people of their agency and infantilizes them.

As a fully empowered adult I feel comfortable telling you to fuck off.

Oh definitely. Any form of coercion counts as against your will in my book.