With the emergence of china as a super power of some sorts and the mucho mucho consumption going on in india?

and china as they try to feed and fuel this new industrial boom with earths resources, (keep in mind china has made a pact with most of the countries in africa for their natural resources), do you think THE GOOD OLE USA can ever regain its glory ? keep in mind that the glory of the USA was based on being the only uber industrialised nation to which everyone sold their resources to. now folks in china and india and brasil are starting to live like americans, and they are offering better deals to the countries with resources. is america doomed forever ? will this economy start to shrink and shrink till every major city becomes as abandoned as detroit with no industries to sustain the indigenes way of living. will america continue to shrink to the point where we all get condensed into one little space while mucho mucho cities are abandoned cuz of lack of industries ? is the future bleak ?