It's been prohibited most places in the US for the past century. There's no less of it because of that. It's just less safe for the prostitutes themselves.
But it doesn't do that. It just makes their lives even worse.
So we just give up then? We fail at preventing this bad thing, so we make it legal so that it's a bit better?
I disagree in principle. Address the cause of the problem, not the symptom. Legalizing it is easing the symptoms.
You can't just say "oh I mean men too"
Yes I can. If you don't like it, then copy-paste all of my posts in Microsoft Word, and Find & Replace "her" to "him or her", "she" to "he or she", etc...
So... someone is being exploited even if they don't think or feel like they're being exploited?
Correct.
Or are you OK with brainwashing?
What does "exploitation" mean to you, exactly? What is does "psychological venture" mean beyond "affects your mental state", since all forms of work affect your mental state?
Yes, all forms of work affect your mental state. However, sex has a greater psychological effect than shuffling papers around an office does. There's a massive difference between working a job because you have to, and being a prostitute because (one way or another) you have to.
If prostitution paid the same as a regular job and regular jobs were freely available, then prostitution should be legal. If it were possible to instantly offer a prostitute alternate employment for the same money before engaging in prostitution, then prostitution should be legal. If every single person were provided for a basic standard of living without having to do anything, and any additional labour or work in an industry just provided extra money beyond that, then prostitution should be legal.
Hopefully that clears it up.