When presented with stories like the one portrayed above, I always apply the inversion scenario and ask myself what the public and the mainstream media's reaction would be if the roles were reversed. If this were the case, I suspect that three Christians physically attacking an Imam and threatening to break his legs; a Christian minister threatening to kill said Imam; and Imams being told that they cannot preach in 'Christian' areas of Birmingham, would provoke a pretty strong reaction both from the media and the muslim community.
But in the real world, nothing much happened.
Now, I'm no lover of organised religion and as such I don't hold Christianity in very high esteem (to say the least). However, I am a great believer in fairness and in that regard, Islam is found wanting. Time and time again, Islamic supporters vehemently complain that they are not being treated with the respect (ie. uncritical, unequivocal, unquestioning support) that they believe is due to them whilst simultaneously wilfully disrespecting other religions as depicted in the story above.