The idea that slavery is a free lunch that is only banned on moral grounds is wrong.
Slavery is bad economics. If you want your economy to grow, paying workers is not bad. Economic growth isn't zero sum.
Capitalists are selfish, and have short planning horizons. For a capitalist, slavery is absolutely rational. The only reason why they don't do it today is because it's illegal.
Capitalists are selfish, and have short planning horizons. For a capitalist, slavery is absolutely rational. The only reason why they don't do it today is because it's illegal.