Anyway, what has
> If they'd been left behind, stranded far away from the "land of opportunity," would they have been better off?
got to do with consent?
That apart, informed consent cannot nullify a crime. That is a well accepted principle. You cannot give informed consent for murder and such stuff. There is a libertarian school of thought that wants to change that but I don't subscribe to that school of thought. Slavery under consent is just as much a violation of human dignity and just as much a crime as far as my views are concerned.