It was...written BY white guys...FOR white guys. What's you point?

https://www.quora.com/Did-America-on...r-World-War-II

"Britain was obviously the most powerful nation on earth in terms of standing military power until the 1930's when Germany surpassed her."

"Britain probably remained the most powerful nation on earth until World War I"

"That said, the second point is about standing industrial might, and Britain was probably passed by Germany in 1935. Both Germany and Britain were likely passed by the US at the outbreak of WWII (1939). While the US remained out of the war for two years, the US nonetheless started arming herself. At that point, the factories began retooling for war, the military grew in power and the US became--and has not since given up--the most powerful military forces on earth."

"Sometime, round 2030, China is likely to pass the US in industrial strength; and about 2040 they'll probably pass the US in terms of standing military strength"

The Way We Won: America's Economic Breakthrough During World War II

"America's response to World War II was the most extraordinary mobilization of an idle economy in the history of the world. During the war 17 million new civilian jobs were created, industrial productivity increased by 96 percent, and corporate profits after taxes doubled. The government expenditures helped bring about the business recovery that ;had eluded the New Deal. War needs directly consumed over one-third of the output of industry, but the expanded productivity ensured a remarkable supply of consumer goods to the people as well. America was the only that saw an expansion of consumer goods despite wartime rationing. BY 1944, as a result of wage increases and overtime pay, real weekly wages before taxes in manufacturing were 50 percent higher than in 1939. The war also created entire new technologies, industries, and associated human skills. "

And here is America today:

Ranking America | a site for information about the U.S.