Earlier quoted context omitted.
That's a very specific right, and very very based in a specific morality, isn't it? There's certainly a good many people who don't think sex is as magical or special a thing as you obviously do. Many think of sex work as nothing more special than being expected to perform labour for several hours a day for a pittance.
No, it's not based in any other morality than having bodily autonomy free from exploitation. If you want to disambiguate it from sex, consider whether someone should be able to sell (and thus another person to buy) an organ. Then consider that the demand for purchasing sex massively outstrips the demand for purchasing organs.
Selling sex doesn't imply the loss of anything.