Has the U.S.A. ever developed a "worldwide" Soccer star...???

Nearly a third of young Americans play Soccer, so why can't a sports powerhouse of 320 million people produce a Messi-- or even a Joao Moutinho? Why do you think America has trouble developing players into stars? Is this article on target with what you believe as to why America is struggling with this???

http://www.theguardian.com/football/2016/mar/16/why-cant-america-develop-a-soccer-star