Afghanistan (and Iran) were very moderate and Western-oriented in the 1970s. If they want to be ruled by Islamic extremists who cares?
You don’t seem to understand that the ones Kennedy hopes to save are the ones who DON’T want their country turned into a craphole.
You, like Paul, can suggest that they should stay and fight; but they have already taken their lives in their hands to aid US. Now, with our leaving, they are, as Kennedy forcefully maintained, in danger of being butchered.
Iran declared war on us as soon as they turned extremist. The present White House occupant is endeavoring to give them the means of accomplishing their stated goal of destroying us. That certainly matters a great deal, and to the survival of carbon-based lifeforms on this planet as a whole.