You claim to understand irony, and then your post devolves into a rant about how awful English people are.
Yes we have some crappy fans and hooligans, although that also isn't part of English exceptionalism. However it's irrelevant to this discussion. I'm not defending that behaviour, but I'm explaining that still today the "Football's coming home" is about hopes and dreams, not expectation or arrogance. You don't have to buy that, which is fine, but that doesn't make it less true, just that you don't understand (and have a preconceived bias against) the people singing it.
I'm sure there are also a lot of people who use it purely in the ironic sense and without arrogance or entitlement. But there is also the other part.