I first simply want to address the smoking bit. _Something_ about smoking is habitual, or rather, not to see that a drug addiction could instantiate or engender a habit which itself re-enforces the addiction, might be the main problematic of 'quitting advice.' Rather, ignoring that cigarettes prompt a way of life only suggests to me that said advice treats an idealized person, or biological system, a model. We are no…
Slavery isn't some inevitable feature of, trade, or political systems, that one chooses or does not. I don't know if it's inevitable, but it's only been for the last couple of hundred years of human history that it was not very commonplace.
As industry has expanded, so has slavery.