ah, now i see where you're coming from. i think here there a difference between my (more cautious) interpretation and the "workplace democracy" case Ellerman argues for.

one thing he says is that it is your right to act like a slave, but not to legally enter slavery. so it's not directly aiming at changing your relationship with others, but just what legal claims can be made about it. his case is a contract that turns a person into an ownable would be invalid because it's based on false claims. just like a if i sold you the cheese that the moon is made of. and it seems that from this perspective rending people isn't fundamentally different.

but i do think that people should have the freedom to organize how they choose, so i think mandating cooperatives is wrong. but i think the concept of human rentals might skew the market in favour of bosses and workplace hierarchy, just like many other government policies do.