I think you’re confusing America bombing Afghanistan into the ground with the Soviet Union bombing Afghanistan into the ground. Since the Soviets invaded, and the US propped up the proto-Taliban in response, Afghanistan’s government has been fundamentally broken. The US bears a lot of responsibility for that but the invasion of Afghanistan arguably made things better for a brief window.
Joke parties making serious showing is the ultimate sign that the centrist neoliberal parties are utterly failing the populace.