From Imperial Twilight: The Opium War and the End of China’s Last Golden Age, by Stephen R. Platt (Knopf, 2018), Kindle pp. 446-447:
With the advent of a free, legal, and open Asian commerce in opium, the native merchants of India and China moved to dominate the trade, squeezing out the Europeans who had acted as go-betweens in the past. By the 1870s, the India-China opium trade was so firmly locked up in the hands of native traders on both sides that there was no longer much money to be made by the Western firms that had pioneered the “country” trade in the early part of the century. In the face of declining profits, Jardine, Matheson & Co. (now run by a slew of nephews and other descendants of the founders and their partners) pulled almost entirely out of the opium trade in 1873, joined by other large Western firms. Domestic production in China, meanwhile, kept rising—ultimately to such stupendous heights that it would dwarf the continued imports of the drug from India. The dawn of the twentieth century would find China producing ten times as much opium internally as it imported from abroad, an explosive abundance of cheap domestic narcotics that would create a public health emergency worlds beyond even the most exaggerated estimates of what had existed in the 1830s prior to the Opium War. So much for the virtues of legalization.
In spite of the best efforts of moral activists at home, the British government would ultimately do nothing to scale back the dependence of British India on opium revenues or otherwise try to help prevent the growth of the drug’s use in China. Meanwhile, the Qing dynasty would continue in its failure to suppress or even regulate the use of opium by the general public in China, wallowing in a quagmire of official corruption it could not escape. Up to the twentieth century, though, Britain’s role in that process would be dwelled upon more by westerners than by the Chinese. It was the English-speaking world that condemned it as “the Opium War” from the beginning, while Chinese writers through the nineteenth century, including Wei Yuan, simply referred to it as a border dispute or foreign incident. To them, opium was a domestic problem and the war was a minor affair in the grand scheme of China’s military history. Only after the fall of the Qing dynasty in 1912 did historians in China begin to call this war “the Opium War” in Chinese, and only in the 1920s would republican propagandists finally transform it into its current incarnation as the bedrock of Chinese nationalism—the war in which the British forced opium down China’s throat, the shattering start to China’s century of victimhood, the fuel of vengeance for building a new Chinese future in the face of Western imperialism, Year Zero of the modern age.