I’m torn about this.

I agree that employment is “value extraction” and people without upfront capital (or risk tolerance) are selling off their IP to other people.

It’s unfortunate, but in most cases I’d struggle to even call it exploitation. So relating it slavery a bit too far and really underselling the horrors of slavery. I can quit my job or go to a new one. Tech companies aren’t running international mass-kidnapping schemes to get their headcount.