We need to distinguish between "many people are born into slavery" and "many people are meant to be slaves by their inborn nature". The former is true, the latter is not, even in the example you've given.
Also, he was referring to people performing labour, not people adhering to spiritual belief or ideological systems.
I see what you mean, but I don't think this means what he believed was true. I see it as categorically different. People adhering to beliefs without critical thought vs being forced into labour due to their 'nature' are very different matters.
Also, he was referring to people performing labour, not people adhering to spiritual belief or ideological systems.
I see what you mean, but I don't think this means what he believed was true. I see it as categorically different. People adhering to beliefs without critical thought vs being forced into labour due to their 'nature' are very different matters.