To me, the National Anthem is a song about baseball. The lyrics don't make any sense anyway, so it can easily be interpreted as a baseball song, especially since the last two words are "play ball" so I have no objection to it being played before the start of a game. And having different people get a chance to sing it, especially when they're local unknowns or groups of kids is nice. It's unfortunate that it's been politicized, but that's the world we live in. If we got rid of everything that was exploited for politics we'd have very little left.