If they have come here with full knowledge of the job they will do, I have no problem with it. If they are brought here under false pretenses, expecting to be working in a job such as house keeping or child care, as often happens, it's a different story. That becomes a story of sex slavery, on which there was a documentary on CBC a couple of weeks ago. In this case they should be helped in every way possible and the people responsible should be imprisoned or immediatly deported. Most girls involved in this are trying to make money to help their families and whether they are forced to work in the sex industry or in some sweatshop, they need help and they should receive it.
PS: This topic should be in the lounge I would think.