[harshreality]

Ban an entire market because sometimes the sources of labor are repugnant?

What percentage of the market has to be drugged-out sex slaves (often imported from some other countries, if the horror stories are true) before it's acceptable to shut down the whole market by criminalizing it?

Does criminalizing the market help those drug-addicted sex slaves, or does it make their situation worse?

[dragonwriter]

Criminalizing the market us why its run by the same groups that run the illegal drug trade and why the people working in it often feel they have no recourse against abuse -- it is, in other words, the reason why there are drugged out sex slaves. If it was legal, well-regulated, with effective workplace protections, the character would be radically different.