Kazakhs cheering Uzbeks, Bengalis wild for Argentina … This tournament was once a playground for nationalism. Now it shows how flimsy that allegiance is It’s the World Cup final , so you pick a side. And don’t worry if you happen to be part of the 98.9% of the human race that is neither Spanish nor Argentinian – just make something up. Maybe you like the Spain kit. Maybe you’ve always been an admirer of Lionel Messi. Maybe you’re still raw about the Falklands or Diego Maradona, maybe you disagr…