The US have their own Football which is supported and financed similar to European Football. Both have have established supporters willing to pay high prices for tickets or season tickets and both pay a ridiculous amount of wages to their players. Its like I said before, marketing, advertising American Football in Europe, UK, Asia and South America would be just as difficult as it has been marketing football(soccer) in U.S.A , yes it has kids playing and popularity is gaining but the US already has a number of major sports that dont get played in Europe or other parts of world.
RE: Soccer Will Not Become a Top Sport in the U.S. Anytime Soon, So Just Enjoy the Game