Earlier quoted context omitted.
If that's the fiction you need to tell yourself to avoid feeling shame at condoning the use of prostitutes, I guess I can't really stop you.
The sex workers don't care about your morals. They have different morals than you and care about different things. Stop telling them and other people what morals they should have. Regulated prostitution may be bad in your eyes but unregulated prostitution is even worse for those who are already in this industry. Don't let perfect be the enemy of good.
The conclusion is that it is an immoral act to visit a prostitute. And that's all you need to know really.
Oh and here's another dirty little secret for you: a good percentage of the customers do it exactly because they LIKE the rapey aspect of it. The world is a darker place than you may prefer to believe.