Well, that article sounds like the usual load of old codswallop produced by the media when they try and comment on dullard academics.
Supporting anyone but England at anything is a measure of nationalist feeling. Anyone who supports England at anything is an Uncle Tom as far as I'm concerned. I'll support Argentina, even Germany, rather than the sais. During the last World Cup the Tywi valley was decked out in Brazil flags before the Brazil-England game. Fucking great, I say. I watched that match in Manchester with 250 England fans and couldn't stay in my seat when Rivaldo equalised (it was a brilliant goal though, with that run by Ronaldinho). Fair play to them, they didn't lynch me, in fact I think they behaved impeccably, to the point that I actually apologised to the guy next to me for shrieking in glee when Ronaldinho fluked that second Brazil goal. Before the Beckham-Simeone debacle match in 98 I spent 50 quid on an Argentina shirt (I was living in England at the time) just to piss them off. I wore it for a week afterwards- it was lovely. But it never turned nasty, which is how it should be.
But this whole topic really is a load of old bollocks. Sport brings out the crassest kind of patriotism everywhere, and the reason why England failing is great -and this Ashes victory is utterly depressing- is because we've learnt to hate the gloating and Land of Hope and Glory gobshite that accompanies this sort of event. And we hate it because historically we've been fucked over and told we're shite and inferior by the colonial masters. And we're still patronised and treated as over sensitive sheep-shaggers by enough sais for it to stick in our throats. After all, there are plenty of loony right-wing goons in the English soccer supporting "fraternity", the kind of fuckwits I sat with when England played Spain in a friendly at Villa Park a few years back (and won 3-0- fuck, no!!!!!), arseholes who sang "No surrender to the IRA scum", who go in for all of this in a big way.
In other words, we're touchy about expressions of English nationalism because historically they've been accompanied by a shitting on us froma great height, or at best a patronising cooption of our cultural identity into the "mainstream". Therefore anything that brings English national pride down a peg or two is great news. But it doesn't mean anything more than that English patriotism is something we detest because it's been accompanied by a belittling of our own culture. Our nationalism is defensive, whereas England's has rarely had to be. That's the crucial difference.
But it's all the nationalist nonsense itself that needs scrutinising. There's nothing natural about nations, they're all the result of homogenising violence that imposes a fake "national culture" on a particular territory. Which is why historically marginalised and exploited bits of England (code for, amongst other things, "the North" in general) also have strong grievances against their historical rulers from London.
I have nothing whatsoever against the "English people" today, whoever they are. They aren't personally responsible for historical violence against the Welsh. I loves Manchester, for example, and having lived out of the country for years I probably have more English friends that Welsh ones. So fucking what?
Just don't start telling me that being born in England is something to be prouder of than being born in Wales, or Chad, or Uzbekistan. So fuck off back to Gwent Prof Tanner, or should I call it Monmouthshire, for years claimed by the sais in their invasive maps.
One final point, I was born in Neath and I think it's fucking lovely. I'd rather live there than Cowbridge, or Bath, or York, or just about anywhere else you can name. Port Talbot, on the other hand, is another matter!