Don't expect the zoo animals passing as human to understand the state of the art.
The puzzle is far more interesting than given credit for.
Take the paradox called the ship of Theseus.
If most cells of your body are replaced we all agree it is still you.
If we replace your limbs or your organs we all agree it is still you.
What if we replace part of your brain, we repair or enhance your cognitive abilities with electronics?
What if we upload you? Is this where your life as a slave begins? ...obviously?
At first the technology will only be available to the insanely rich. The obvious thing will be the exact opposite. In 1000 years or so, they will have rights and people will not.