First video is an account from a male victim sold to an organisation in Myanmar. The second video is an account from a female victim from Taiwan sold to Cambodia. Many different types of illegal businesses and organisations form a closed loop in these countries. Most victims start off working in online scams. Victims are sold to another business when they are no longer useful. The final destination could be the operating table where organs are harvested.
Like they said, there are only things that you can’t imagine. There’s nothing that they can’t do. Having said that, some of the “successful” victims may end up as partners and recruit other victims.