dawg, wage labor under capitalism is literally slavery with more steps. If your ability to survive is predicated on your ability to sell your body for a wage, you are a slave, and anyone arguing otherwise (you, in this case) is wrong. If you refuse to work and your refusal is met with homelessness and starvation, that is no less coerced labor than if I held a fucking gun to your head.

Also your initial statement of "workers have rights, slaves have none" is just so fucked and wrong from multiple perspectives. Slaves have historically had rights, not every form of slavery is "north american chattel slavery" where they're treated like livestock. And, again, what difference is there from a "right" won through violence by a union and rights won by slave revolts? There isn't any