Well, that's a creative way to compare work-life to slavery. But let's be real here, slaves don't have a say in how they spend their time or what kind of activities they engage in, employees do. Employees are free agents and chose to join office camps for monetary gains and skill development initiatives only amade possible through labor!
Discussion
Who's talking about "work-life"? We're talking about confiscation of one's work. You can choose what to do and how to spend your free time, but not whether the fruit of your labor is confiscated or not. That's what defines a slave, not how much "free time" they had.