I'm not pinning Afghanistan on Biden. It was clear from day one that the day we left, the Taliban would take back over. The only way to avoid it is to keep on providing military support for their government, and to do that we'd need a puppet government who can be trusted. So basically Afghanistan becomes a proxy state of USA.

That isn't a perpetual solution. The only way to forever rid the world of the Taliban is for the people to rise up against them at all costs, and they won't do it. That's because the male population find their strict Islamic law to be an acceptable form of society. The women don't get a say. Let them live in the 13th century. We can't police the world.