What will this accomplish?

I can't disagree with you but it is pretty hard for some who are so committed to the cause of helping those less fortunate than themselves.

There is more to it than that, remove all the aid agencies and all their workers and the military has to step in with its own personel to do the job and then add more troops to guard the new troops.
So aid workers stay fark out of afgnanistan and let the tax payers pick up a much bigger bill.