I think the best thing to do is try and go after the funding of the Taliban at this point, but unfortunately this strategy has been tried in recent years and hasn't done much to move the needle. They operate on a complex network of finances embedded in illegal trade of narcotics, legal industries in the country, and international funding.
https://www.bbc.co.uk/news/world-46554097
It feels like an impossible task. The only thing left is for the citizenry to rise up and fight back, but that will likely create so much bloodshed to not be worth it.
Looks like the Taliban will become the de facto government in Afghanistan before the end of the year. Depressing.