The Taliban culled opium production in Afghanistan shortly before the US led invasion, after which production miraculously recovered and increased [1].

But sure, it's definitely "China", which has extreme cultural trauma around opiates (and zero tolerance policy toward them) and analogs since the Opium Wars devastated the entire country, that is the primary problem. No blame for the pharmaceutical companies and pill pushers who rely on Golden Crescent/Triangle opium exports!

[1] - https://www.bbc.com/news/world-us-canada-47861444.amp