I don't believe that. Most prostitutes in the countries you mention render their services voluntarily. Could you please give credible references for your claim

I don't believe that. Most prostitutes in the countries you mention render their services voluntarily. Could you please give credible references for your claim? In the context of prostitution, the term "human trafficing" itself us primarily used for shaming purpose where prostitution is no longer illegal. For this reason it should be avoided like the plague.