Right. We helped the Muslims chase the Soviets out of Afghanistan. Then the Muslims based in Afghanistan attack New York city. Are you incapable of learning anything. Let your enemy spend resources dealing with lunatics.
I apparently learned a lot more than you. Our enemies and the lunatics are who took over Afghanistan. If we’d have stuck around, helped out, built some schools, found some good places for McDonalds the place wouldn’t have been ripe for take over by the Taliban. Again, look at WWI and WWII, abandoning a place just lets a fresh set of bad guys take over, build the nation and it stops being fertile ground to grow enemies.