Why would the 3rd world countries also need to pay for the U.S.A. debt?
Here is the best answer to your very thoughtful question:
https://realprogressives.org/podcast_episode/episode-214-surfing-the-wayback-machine-2017-with-fadhel-kaboub/
https://realprogressives.org/podcast_episode/episode-214-surfing-the-wayback-machine-2017-with-fadhel-kaboub/