RUBBISH.
Why is it not that simple? Maybe it doesn't make sense to you because you can't understand some simple cultural difference.
You've all answered the question without even realising - all admitting that the doors were run by shady doorman for decades and this never happened before - and his wasn't the issue here. The crowd were exclusively a single race - they "rushed" the door in an organised attempt to get in without paying and one black woman lamped a copper round the face (all on video, I've seen it) then accusing them of using excessive force. This is the same tactic they use when "rushing" Westfield or any other shopping centre, it's a well known "tactic" that is used in America and you can watch videos online - they do it in Detroit, Miami, NY - most recently at the Apple stores, hence the extra security you see over here - due to the copy cat criminal elements (again all on video). So yes, collectively you can refer to "the crowd" as people act in unison when grouped as a collective with a shared identity. This is why crowd dynamics are totally different from individuals actions and in this case - it's known that it was premeditated and organised online to enter without paying. No amount of security, good or bad, could have prevented this and the worst bit - we will all suffer the extra cost for future events and extra Policing and security will be part of their licence conditions. Why do we all have metal detectors at the major clubs (like Ministry of Sound, Fabric) It's not White people going around with machetes and knives around London, storming shopping malls and if it was evidence could be provided that there were no cultural consistencies at play here - but that's impossible and people need to accept it instead of over intellectualising the problem.