I used to agree with you but I am no long so sure. I have no idea how this causes a real increase in human trafficking but the how is actually far less important than the reality. It seems that actual studies in this subject by people that are not interested in the outcome almost universally come up with data showing that human trafficking increases, including child sex trafficking. There is no doubt in my mind that it would be FAR better for prostitutes for them to have legal recognition and protections BUT it seems that a larger number of people will be trafficked, abused and harmed.
This paper investigates the impact of legalized prostitution on human trafficking inflows. According to economic theory, there are two opposing effect…
www.sciencedirect.com
This goes heavily against my priors, as I think it does yours, but a serous look at the data has forced me to change my stance on the issue. I do not know why this profession results are so at odds with prohibition but I cant argue with reality.
It would be nice if any of the 'pro' side would actually address these facts as well. Most of these types of discussions simply boil down to ideological bickering rather an actual look at any data.