have grown exponentially during the last decade.
They haven't, nor is there any mass movement there to secede.
Amazing how a thread about football ends up with mentally ill Serbians (crnnogorac) who attack Britain because we pwned them when they were murdering people and East European (GefreiterKania) and East German (Bratwurst Boy) bigots banging on about Muslims who've moved at great risk and hassle to themselves to Europe and have done better in life than any of the three posters mentioned.
Football is a sport. It has more fans who are brown or black than white, more who are Muslim than Christian and is enjoyed all over the worls, from the back streets of Tripoli to the suburbs of Glasgow.
Even the rivalry and violence of some of the porer educated fans is pat of that, and good that it's focused on football rather than religion or something as pathetically trivial as nationalism.