I read this thread this morning, and have been pondering it all day.
I think accurate definitions are important here, because a lot of important debate is being smothered in accusations of race and religious hatred. All these accusations do is waste time and confuse the issue.
To my mind, we have a serious problem in Britain with puritanical theocrats. It doesn't really matter what religion they are from, what matters is what they are : a kind of 21st century version of fanatical "precisemen", many of whom endorse, or will even commit, violence in accordance with their theocratic ideology.
Barber's verbal aggressor appears to have been one of these theocrats. And, as is common with fanatical theocrats, the exchange constituted intimidation, a form of violence, a nuanced threat.
This cannot stand. England has been here before. It ends in disaster after a lot of meaningless deaths. The vast majority of people in Britain do not want to live in a puritanical theocracy. They never have and they never will. They don't even want to be anywhere near theocrats, which is why it is so alarming when they pop up out of nowhere to castigate you about your clothing choices.
Talking about what is and what isn't Islam in this situation is somewhat like regurgitating arguments over whether or not Oliver Cromwell was a "real Christian". You can bet your last button that Innocent X thought he wasn't, but, likewise, Oliver Cromwell thought the Pope was the devil himself.
Honestly, some of the debates over the status of these theocrats in Islam remind me of endless harrowing hours of discussion over whether or not Stalin was a "real communist". There is no point in engaging with these arguments; we will just go round and round until everyone gets dizzy or someone bonks someone else on the head. We won't get anywhere or solve anything.
The real question is ... what do we do about these extreme theocrats in our midst? It's not like they keep their thoughts to themselves, is it? They aren't exactly restrained in their actions. Two of them even cut off a bloke's head in broad daylight.
I suspect a lot of people will balk at some suggested solutions to our theocrat crisis, but seeing them as puritanical theocrats and not Muslims makes the situation a lot clearer -- it takes the emotional heat out of the issue, and removes the identity politics.