The RCMP is calling them victims. This is laughable. There are over 4 million prostitutes in China, and most of them are under 27. It shouldn't be very difficult to recruit willing volunteers from the thousands of brothels and massage parlours, especially in Southern China, to go on an adventure trip to Canada. Much more money, much better clients, better working and living conditions and avoiding the threat of being locked up in a Chinese jail for a year after a Chinese police raid (well, they do call them victims here in Canada!) and then being shipped back to the village in shame. Hell! some do-gooders here are even proposing to accept those caught here as refugees, which would be a dream come true for many of them!
Most prostitutes in Hong Kong are from the mainland, and they are there on 7 to 30 day tourist visas. They are handled by the Triads, including advertising and accommodations, but the returns are sufficiently higher that there's a steady stream of willing volunteers. In comparison, getting the chance to go to Canada with everything arranged would definitely be hitting the prostitution jackpot.
Believe me, if most of these people were badly treated, word would soon get around in China. Rather, there seems to be a steady stream of willing volunteers precisely because of the benefits. Many of them want to make enough quick money to start a business or buy a house there, which is next to impossible in China for ordinary people. Many find out about the opportunities through word of mouth from those who have already been and returned.
People have dreams... even prostitutes.