Unfortunately the American media is louder than everyone else, and they are very very very xenophobic and look over real talent, in desparate search of something mediocre and American born.
I guess living in America gives me access to more American newspapers and magazines, because I've read a lot of promising things about players from other countries. Roddick is going to get the most attention because he is American, and the media is looking for a replacement to Pete and Andre.
But...judging by the poor tickets sales for some of the European events on the WTA tour, perhaps their media isn't doing enough to widen the fan base to players outside their country? So, I don't think this is strictly an American issue if its an issue at all. Every country is looking for a player for them to hype and call the next Pete or Steffi.
I have read some dumb ass comments about American tennis though, don't get me wrong. I remember reading something by John Weirthem, of all people, who said this year he thought Hewitt would get injured and Roddick would win a slam. Looks like its the other way around. Hewitt is winning the slams and Roddick is well...showing up for them at best. Unfortunately some commentators and journalists make predictions without looking at stats, records, etc. first. But there are plenty of American journalists who know what they talk about. But most of them aren't with the Newspaper that have worldwide publication, unfortuantely.
Personally, I enjoy cheering for the Swedes and Hewitt over the American men. I enjoy watching them more.