Umm what? Why would you think that? I'm pretty sure America watches the World Cup. It may not be the most popular sport here, but when it comes to supporting our country, we never fail, especially during tournaments like this. For example, no one watches swimming matches day to day, but the vast majority watched and cheered on Michael Phelps. There's a reason why the World Cup '94 holds the highest attendance record, as well as the most watched sporting event in our history.
Bottom line, America as of now, will have the most support in South Africa next year.