I suppose you also believe that gambling and prostitution in Nevada are successfully regulated in ways to keep organized crime out of it.
Irrelevant to anything that's been said on this thread ... but, "Researchers state that organized crime is more of a product of illegal or poorly regulated gambling than well-regulated gambling. [...] Organized crime has been successful infiltrating ancillary businesses such as machine maintenance or those that provide other services." - https://www.library.ca.gov/CRB/97/03/Chapt11.html
And the poor wretches who provide sexual gratification in this regulated environment are not exploited, I suppose?
Depends what you mean by "exploited" (a favorite term of liberals). There's STILL no reason to believe coercion is possible: "And having been forced into legal prostitution, they don't report it to the authorities because ..."
Do you use prostitutes?