That's pretty much who I was referring to when I was talking about soccer "turning heads": fans of the other big North American sports, who are still in the majority here. I already know MLS is growing, but soccer has historically never been as big a deal in the US as it has been elsewhere. There's just not much precedent for me to think that will change in one World Cup cycle. Longer than that? Perhaps, but the USA team's best chance to really further that along is to win more meaningful international games.
I agree with a lot of what you said, and even used to feel the same way. However, one must remember how old the NBA, NFL, and MLB are in comparison to MLS. Yes football, baseball, basketball, and hockey (and some college sports) all beat soccer in overall fanbase. However, domestically soccer is in its infancy in terms of being noticed and appreciated. For instance we as a nation hate all of the diving and whining that goes on, while other countries seem to embrace it. So long as FIFA doesn't enforce against it we're never going to love the sport simply because of our ideals and beliefs about how athletes should act.
We also simply
do not have the talent to compete with the Germanys and Brasils of the world, but we are a top 16 country and play with a lot of heart. A performance like Howard's may inspire the next great American goalkeeper, even if we did lose. Also Klinsmann is fighting hard to fix our youth development system, which should help produce more talent. Until we produce better talent, we will not win a World Cup. That doesn't mean that the sport won't grow though, at least not to me. It simply means it's going to be a slow, steady growth and I'm fine with that.