Neither is the modern day sex slave who has been kidnapped and is now imprisoned in a brothel, and may die there if not rescued or able to escape. It's still slavery. If you are an adult working for no renumeration and are unable to quit, you're a slave.
‘Neither is the modern day sex slave who has been kidnapped’
you are aware that indentured servitude was underwritten by a legal contract, that specified a set term limit for the indentureship; in no way shape or form did the concept of ‘kidnapping’ enter into it...but kudos on your red herring...