Father Francis Parkinson summed it up for me;
I expect all youths to be law abiding and not cause harm to people's places of worship. Sadly some youths behave disgracefully and these youths in particular have disgraced their community by what they have done to St Joseph's
I dunno, I guess you're right, this may not be a right enough thing to go on the list of Muslime atrocities so much as youth hooliganism, but then again, it does seem to be an England with Christianity under siege -- mostly by agnostics, but also, in Birmingham and the midlands, by the Muslims.