I mean they are not paying taxes to countries, they are not benefiting to the country directly or indirectly I am talking about slave traders, not slaves. So how this can help a country to make money or the world economy to make money? I say this should not happen and people should be given free will. Although in my country there are areas deep into the country where chieftaincy runs. People are not allowed to marry any girl outside the tribe. If a person wants to study in big cities there father had to become slaves of the chief and will remain slaves until the boy does not return from his studies if he does not return then the father remains the slave forever.
I won't say its slave trading but if seen closer it is also a type of trading slave, means for the freedom of son studies father have to trade himself for slave. Overalll this should be stopped