Not as much of a stop as you would think. Historically speaking Ford motor company already tried basically enslaving indigenous people on the Amazon for rubber production. Most of the cotton in the US (and many other industries) was done by black slaves. Current fishing in south east Asia (and other places I’m sure) can have slaving with extra steps on a boat. Apple/Nike and other big brand factories in chine have had nets installed to prevent suicides, etc. There is no stopping the horrible disease that is wealth hoarding and human exploration it seems.