Why the hell is the US still in Afghanistan? Great damn question!
But Afghanistan is not the US. They have never stopped fighting, if not against invaders, then against each other, for thousands of years. They have immense spaces to disappear into, are armed with fully auto weapons, know their terrain to the square centimeter, and fight a force that will and wants to go home.
If you think people are not even willing to vote for a third party, how many do you think will join you in an armed rebellion almost certain to fail?
The 3%ers