[wastedyears]

In 20-20 hindsight, the proper thing to do with Afghanistan would've been to subdivide it into four countries

Nobody has any authority to do that except for Afghanistan.

[Vigilanteman]

Tell that to the people who created Iraq, Kuwait, Palestine, Transjordan, Syria and other countries from the Ottoman Empire, post World War I, mostly dysfunctional entities with which we are still dealing with today.