I'm with you all the way. It's always much easier to strike up conversations with foreigners on my travels (or the locals) abroad than it is with people from the US, even when abroad. I was on vacation taking a tour when another American family joined. It didn't take long until they started to talk about politics. We could have talked about so many other things, but that's the reality for the vast majority of Americans. Politics is the only sport left and all consuming for most here. The worst part is like you said, they are rooting simply for their own team and aren't looking for an actual intellectual discussion on anything.