I don't actually know ANYONE who is saying we won anything in Afghanistan Kath, so not sure who you and the author of your article are admonishing.
In fact , that is precisely why I want to get out of there. I'm tired of our men and women being killed and wounded in a war where we have no clear goals other than some vague idea of bringing democracy to a people who don't even understand the most basic concept of democracy.
How many trillions of dollars must we spend and how many lives must be lost before you say "wait, we've been at war 40 years now, this isn't working?"