History rhymes. Read Thomas Piketty's Capital and Will Durant's Story of Civilization to understand the cause and recurring nature of economic inequality.
Counter-thoughts from reality: China's doing great, and the US has a higher percentage of its own population incarcerated than any other state in human history.
https://www.prisonlegalnews.org/news/2014/jun/22/inside-chin...
For that matter, the US has it as well (albeit to a 'cleaner' extent):
https://en.wikipedia.org/wiki/Penal_labor_in_the_United_Stat...