I will never understand.
Can you imagine France or Spain or whoever axctually wanting their country to get beat? It just wouldn't happen.
Y'see, that's probably the kind of thinking that sees us get into wars. For me I'm a football fan before I'm an England fan. Right now Spain play football a whole lot better than we do. If England were to play Spain off the park with a wonderful display of football then of course I'd be very happy, but if both teams play to their current potential I fully expect Spain to wipe the floor with us.
It's a dangerous thing to blindly support your country whatever it does. It's just a place you're born in, nothing more than that. London for instance has people from all over the world and it's that multiculturalism that is part of the fun of being here. Should I dislike my girl if we play the Czech's in football? It'd be pretty silly wouldn't it?