To be fair, you'd be best off complaining about the whole concept of nation states in this postmodern blah instead.
The patriotic vibe I'm picking up, almost entirely, is "Come on our lot!" and "Isn't that other chap bloody good? We deserved to be beaten by them!" There is a difference between patriotism and nationalism, and I think it reflects upon the poster to find darkness where the rest of us are finding light.
I don't think I'm watching the same olympics as you*, or, at least, not with the same people.
But patriotism/nationalism usually winds me up.
(*I've watched not very much of it)
Yeah, and some people think there's no nationalism:
competitors compete in national teams (can anyone take part as an individual?),
"xxx xxx wins gold for name of country",
medal tables,
national anthems galore,
constant flag waving,
watching a sport you have no interest in just because someone from your country might win,
broadcasting an event you would never show on TV at any other time (coz it's a weird minority sport, worldwide) just because someone from your country might win,
get ecstatic cos the winner just happens to be from the same country as you,
get really disappointed just cos the winner just happens to be not from the same country as you,
it's a final, but we're not going to show it on TV, coz none of the people are from our country,
person comes second and they're on every national newspaper front page of their country,
etc
It's the Olympics.