The US also negotiated with the 'devil' formally known as Imperial Japan. . .of course that was after the US got a frickin' unconditional surrender out of them first!
It's was the same problem with Iraq! Hussein was caged up but no unconditional surrender!
Yea, from the OP ED I just read, it looks like a security job with the afghan government was about the only job opportunity there was. If the taliban pays you more to go home, it really is that simple.