As a result of Opium War China was forced to LOWER TARIFFS from 65% to 5% and to allow British merchants FREE TRADE in China. It ruined China and enriched England.
Slaves were not slaves as the result of their free choice. Logic is clearly missing from your posts allegedly about economics.
It is you who has problem with logic, slavery resulting from debt WAS the result of free choice.
There was nothing about the Opium War that was Free Trade.
And no there were no slaves of their own free choice where you come up with that doozey is of interest. Well unless you are speaking of submissive sex slaves.