It is less about the us being capable of it, than the us getting out of the way. Japan, India, and SK all have vested interests in preventing further concentration of Chinese mercantilist power. Saying an establishment us president would focus the fury and might of allies is a bit outdated I agree. SK survived a coup, Piland is working on it. Hungary might even pull it off. Maybe the us will right the ship as well vs overcorrect into a different sort of populist autocrat. But even then as you say; That soft power went up in flames.