slavery is expressly illegal in every modern nation on earth today, and yet it happens in- i'd venture a guess- every single one of them

under a system where people are truly free to alienate their labor and its proceeds, it'd be even easier for good people to set others, who may be living in bondage, free

presently, that's up to.. the same people who have a monopoly on the legal initiation of the use of force. it would neither be legal nor illegal--literally what is anarchy

do you really suppose it'd be any better/worse under anarcho-communism or anarcho-primitivism?