I've seen them. The ones released by the Daily Mail and BBC. Now you think our media is PC? The British media is that times 100. They could have 50,000 videos of all immigrants and 4 with a mix, and they'd only release the 4.
Plus, Britain is still 95% White. So proportionality is even more of a factor there.
Are these riots 95% British to 5% Middle Eastern/African? No. 80-20? No. 50-50? No. I'd be shocked if it was 15-85.
And where did they start, and why? And would they even have had them if they didn't bring them there in the first place?
You don't include in this list the group where it actually started - black Afro-Caribbeans (mostly Jamaican). Others - particularly white anarchists and anti-globalists - have joined in the fun, but muslim areas haven't been involved as yet.
It's easy to forget that until very recently the 'bad immigrant' in the eyes of the British media and popular opinion was not a muslim but a dreadlocked Afro-Caribbean Rasta/gangsta, with all the associated connotations of crime, drugs and sex. By contrast muslims were seen as generally quiet, hard-working and law-abiding - which indeed very many of them were. It's only in the last decade or so that this perception has changed - but the Afro-Caribbeans didn't all become angels overnight.