You know, I agree.
That's what we should have done in Afghanistan: just blockade the border with Pakistan to keep them from escaping, and drop bombs and missiles until every cave in the mountains was sealed and nothing else was moving.
Then depart, leaving nothing behind but a simple message: if you bother us again, we'll be back and do 10 times the damage. You want to prevent it? STFU and clean up your act. You want help rebuilding? Talk to the people that got you into this mess.
We should have done something similar in Iraq the first time.
I too am tired of footing the bill for the "world's policeman". The rest of the world can go to hell without our help or hindrance.
Here, here!