Then replace selling fruit with backbreaking manual labor: coal mining, digging ditches, whatever. Something that causes real and permanent damage to one's body over time. Is selling your labor in such a way morally wrong?
No, but purchasing it might be. Employers can mitigate their culpability by including health and disability insurance, and workplace condition standards. They typically only do this when required by government regulation, though.
And in the end there's a qualitative difference between purchasing access to a person's time and labor, and purchasing access to their mouth, vagina, and anus.
Maybe you can start purifying your soul (because clearly there's some sort of puritanical religious thing going on here) by abstaining from the use of electronic devices: https://en.wikipedia.org/wiki/Coltan_mining_and_ethics
I'm a materialist and an atheist. Being an atheist doesn't prevent me from seeing how abusive and immoral it is to purchase someone's body from a position of economic and social advantage. In fact, it clarifies the situation greatly; there is no soul separate from the body, so making someone's body the object of economic exchange is literally always participating in human trafficking.
The authors at http://www.feministcurrent.com/?s=prostitution would universally guffaw at your misdirection towards religion. This is about patriarchal oppression of women, all gussied up in the same neoliberal language that has proven itself unmeritorious in other public spheres.
Right, right of course. Your totally secular belief system is what led you to a moral viewpoint in which it is immoral to rent the mouth, vagina or anus, of another human being, but (one assumes) renting their penis is totally fine.
So as a gay man, it would be highly immoral for me to have sex with a prostitute whom is a bottom, but renting the services of a top for the night would be totally fine. Am I interpreting you correctly (not that I have, or plan on, engaging the services of sex workers. Not really my scene.)?
And in the end there's a qualitative difference between purchasing access to a person's time and labor, and purchasing access to their mouth, vagina, and anus.