Quoting Viv, Ev & Gwen ♥:" I don't think America was EVER the greatest country."
There's a case for it following WWII for a little while. For a decade or so, while the rest of the world picked up the pieces and America was reaping the benefits of having played international loan shark, and had just had the boost of the manufacturing necessary to fuel the war.
But that's what it always comes down to with Americans: they rise and the fall on the tides of war. War is good for industry in the short term and bad in the long term. And they've been at war basically nonstop in one capacity or another since 1950.
Finally it's starting to take its toll. Largest standing military in the world, most spending on military by a long shot, perpetual war, and a manufacturing sector that hasn't worked in 30 years. They're not even benefiting economically from their wars like they used to. Instead, because they're 'MURICANS, they don't have to do the work to build their own smurf -- they just outsource all the labour elsewhere and pay premium price to do so.
They can't take elevate their poor people out of poverty, they can't educate their young people, they can't care for their sick and old people, they can't make anything any more. All their TV is made up here. GM now makes more cars in Canada than America. China makes all their electronics. Kids in Cambodia make all their clothes. What makes America great? Their 2/3 overweight population? Their political fights that bring a live circus to the rest of the world every 4 years? Their guns? Their culture wars?