This has happened before - slavery was a near-universal human institution right up until it was rejected for moral reasons. Then we learned how to live without it.
Arguably, conventional slavery was on its way out anyway, morality or no. Though it still does exist in some places.
Well it still exist everywhere, when most have less chances for educations than the elites which result them to work for the rich 1% elites at a minimum wage job to barely survive. what do you call that ? I call it modern slavery.
and don't tell me it is not possible to have a better system, yes someone has to do that Job, I agree on that, but that one has to be fairly paid, take Switzerland as an example, I love their payment scheme.