>Back up and look across nations, and over longer timespans, and it may be a net benefit to humanity if Afghanistan under the Taliban rule becomes a cautionary tale, despite the humanitarian cost within the country. Also, if a nation cannot afford to feed itself without resort to opiate exports that harm the rest of the world, perhaps its citizens should be left to solve this without external assistence.

I think this kinda assumes Afghanistan has not been significantly influenced by outside forces that have helped put it in the place it's in today. The opiate trade doesn't exist without consumers after all, especially those whose governments kept it alive.

The outside world came and took what it wanted from Afghanistan and propped up extremist organizations while it did so and now gets to peace out and go "beware"?