"The fact is that sport is able to unite the country. We are all pleased when our athletes beat the world."
Sorry, Gromit, I don't feel any more united with the people around me as a result of some impressive athletic displays in London any more than I would if I'd just seen a circus (the skills of which take just as much time, skill and dedication as do sporting achievements).
I'm aware I'm of a minority opinion on this. But too often it seems like invoking national unity is a tactic for getting people not to talk about things, or to sell them an idea. As someone who doesn't particularly buy into national identity, it just feels like I'm being manipulated - like someone is attempting to influence me, just as they do in schools and churches. I don't like the feeling of being manipulated. And if others didn't, I think they'd feel like that too.