Afghanistan would be just as bad as today. It wouldn't have suffered from the current US devastation or the US-armed militias that swarmed the country in the 80s and 90s, but the economy would have remained an undeveloped Hell on Earth in the control of a British colonially supported viceroyal autocracy that exploited the population.
Basically, it would be another Saudi Arabia, only with arguably more poverty and with high rates of drug addiction.
Do you know anything about Afghanistan before '73 coup? Yes, Afghanistan had problems but it was far from Hell and it had good changes develope at least to OTL Jordan level nation. Tribalism and extremist conservatives might cause some problems but these wouldn't be anything compared to OTL problems. And major guilt to current sorry state of the country was USSR.