To get to the point, if people of all races and creeds were demonstrating against a common enemy, why on earth would you expect violence to break out?
Simply because you wont attract all races and creeds on the supporting side. You will also attract a counter demo, in exactly the same was as when the NF used to march, they only had to be there, those on the counter demo always felt obliged to start the throwing bricks, bottles etc. You can stop that by very large numbers of police, which then takes them away from what they should be doing.
However, neither that, nor your point on police change the simple fact that a demo is utterly pointless, and would have no impact on anything. Those you suggest it is aimed at aren't interested.
Trying cheap shots at the Police isn't helpful either, most of the public I met as a Policeman lacked common sense, and an inability to resolve their own problems, no matter what social standing they held. It does not mean that every member of the public is the same, in exactly the same way as your opinion of some does not mean all Police officers.
Not sure why your advising people to avoid Cyprus. Could you please explain.
I think he presumes because aircraft are launched from Cyprus, then IS would target it.
However, even as a thick ex copper, I know that the UK bases on Cyprus are independent of the Cypriot State, and are in effect British Overseas territories. While the Cypriot Government are supportive of the attacks, they have no say or control over our use of the bases. Unlike for example the US bases here which remain RAF Stations and cannot be used for offensive action without the UK's consent.
So an attack on the Cypriots as revenge or an attempt to prevent the RAF using the base would be pointless and a waste of resources. Attacking the bases themselves might well happen, but Akortiri is well away from anywhere you'd go as a tourist, and very well protected.
I would advise you to avoid Cyprus at the moment, but only because if you think it's nice and hot, it's not. in around a months time, it gets bloody cold. We used to break ice on puddles on the way to school from the end of October.