>"the US will never let china become a superpower."
It already is. To the less degree than the US for now. Could go either way in the future. But if you think that the US could go on forever dictating what other countries allowed to do I think you are wrong.
I think people like that are the reasons why the world isn't at peace. China could've become the next japan. They could've probably overtaken the US that way too. But now, they've "alerted" the eagle, and the US will never let china become a superpower.