The US is not necessarily bad at nation building either, Japan and Germany became two economic powerhouses with our help in the decades after WWII. We didn’t replicate that level of success in Iraq, and it was a rough journey, but in the end Iraq is a functional, relatively peaceful country that isn’t threatening its neighbors with invasion anymore. Afghanistan is obviously an F on our nation building report card and it’s clear in retrospect that the US was the only thing holding the tribes together and propping up the government.