Not usually

See that's the point I was trying to make. If that's the person who it hurts (i.e. victim), then how does arresting them help? How does cracking down on safer venues help?

Additionally, can you draw out what the imagined harm is? Because all I can think of is the potential for harassment and trauma and the potential for physical danger. Harassment and trauma occurs in many other lines of work, but I've never seen that problem solved by criminalizing the occupation.

As for physical danger, it's only increased by law enforctement taking away safer alternatives like this. A study in Chicago found that 1 out of 4 strippers who were raped identified a police officer as their rapist (Source: Incite). That's not the exact same thing, but it goes to show hat creating a power dynamic where police can ruin your life if they find out what you do for a living leads to more abuse and exploitation as often if not more often then it leads to an end to them.

FYI, "selling one's body" isn't what prostitution is. I get my body back after a call, thank you very much. To use inaccurate and sensationalistic terms like that just makes it easier for the police and others to view us as having no agency and thus no rights. Portraying us all as victims doesn't help anybody.

I believe to see something as immoral you must consider more than just whether or not it is illegal. The impact of the behavior is key, and the impact of enforcement should not be overlooked.

In the examples you give, there's always some level of harm. Selling your organs could kill you or greatly reduce your lifespan. Stealing a credit card clearly hurts the person being robbed. Depending on the drugs, there can be significant harm (but if you ask me, I am in favor of decriminalization of some drugs, the war on drugs is obviously not an effective way to reduce addiction and violent crime associated with drugs).

My point was that most people see prostitutes as the victims of prostitution and think that they will help them by ending prostitution. However, attempts to do so only push it to more and more dangerous circumstances, not to mention that prostitutes get arrested at significantly higher rates then clients -- and that's no way to treat the people you see as victims. By your framing, though, it sounds like you think of them more as perpetrators. Who's the victim then?

So where's the harm in prostitution? It can be dangerous to meet with strangers, but the danger mostly exists because you can't go to the police for help (and those who do are often not helped). Street prostitution can have larger impacts on a community, but this whole article is about how allowing people to work off a computer is safer and better for the community then kicked them back to the street. So where's the harm? All I see is harm caused by law enforcement, not by the profession.

By the way, I'm not arguing for legalization -- that's a bigger and more complicated issue. All I'm arguing here is that because they are not directly harming anyone, the wellbeing of sex workers should be considered heavily in policy decisions around prostitution rather then having those policy decisions driven by punishment. I'd have the same standard for any other crime that does not cause harm to others.