I briefly looked into this case, and - as far as I can make out - the sentence was handed out to a member of a British fascist group who had hi-jacked the peaceful protest about Muslims burning poppies, which took place outside (possibly inappropriately) the Jamil mosque. I believe it was for public disorder, and not simply graffiti.
There are nasty nutters in all groups of people, and justifiable demonstrations about poppy-burning are just as likely to be taken over by fascist extremists as Moslem demonstrations against Guantanamo are by Moslem fascist extremists.
It is highly likely that the email which you have dutifully forwarded on (why is it that everyone wants to go viral when they rant?) emanates from a highly unsavoury BNP source, and by unthinkingly forwarding it on as they have asked you, another bit of kindling has been chucked onto the fire which they would dearly like to see burning out of control.
Of course every sane, socially minded person was outraged at the burning of the poppies, but you have to remember that this included many Moslems, whose forebears fought and died in WW2, and whose friends and families are still dying as they assist western forces in fighting bastards like the Taliban, etc. To be a translator for British forces in countries like Iraq and Afghanistan is actually more dangerous than being an infantryman, and they are promised that - if they survive - they will be granted a new life in Britain along with the financial assistance they will need for themselves and their families, but it has recently come to light that few of them actually get the promised help from the British government via the army, and it has taken about 70 years and Joanna Lumley to get anything like fair compensation for the heroic Ghurkas, who have been assisting British forces since WW1. The two main obstacles were government meanness (now justified as essential cutbacks) and opposition from xenophobic organisations like the BNP.
I really think you should think twice before forwarding on deliberately misleading and hate-fueled, knee-jerk emails like this one.