It is not your boss that requires you to fill your belly with food. It is reality. It is not your culture that requires you to drink water. It is reality.
That we choose to associate such that we are not all individually responsible for every requirement that reality imposes on us is not slavery. It is simply the universe.
Further, it is not your boss that requires you to buy a new car. It is your choice. Nobody is holding a gun to your head and ordering you to go out to eat instead of eating lentil soup. It is your choice.
You want to avoid "wage slavery?" It is simple. SPEND LESS, and you will not need to make as much. The actual bottom of what you are required to spend is quite low and can be very feasibly picked up in odd jobs, transient employment, and judicious use of public services; you don't even need to go "Mountain Man". But it is not slavery. You have chosen this. If you feel you have no choice but to choose civilization and employment, that is because (free) civilization is a fucking good deal! I only wish there were more like it! Stop whining and enjoy it. Or man up, pay the piper, and disconnect. But don't come whining to me about the consequences.
Slavery is when you are told to do nasty work, and you will be shot if you don't. Or raped, regardless of your gender. It's not even remotely the same.