Why isn't Soccer popular in America?
Simply put, because it's boring. Americans want action and action means scoring. Watching a soccer game is like watching one of those old electronic football games where the board vibrates and the plastic players bounce around like a bunch of drunken rednecks.
I'm sorry to say, but that is slightly true. I had one of those games when I was a kid. Also, soccer is more exciting/interesting to children here, than full-grown adults. In America, kids have soccer teams and play in their league.
Mom/dad take them to the game and watch them, because they have to.
The term "soccer mom" is often used for those mothers who drive the van full of kids to their game. I don't hear the phrase "soccer wife".