It is an absolutely grievous, unconscionable decision to allow this to go ahead on a day of profound mourning for Jews; the sorrowful remembrance of massacre, torture, rape, mutilation and abduction; the abuse of free assembly and speech. Suppose a group decided to march with swastika flags down Whitehall on Armistice Day?
I am somewhat baffled by the logic of:
a) A march is legally required to provide the name and address of an organiser to police
b) No-one has done that here, so...we just have to allow the march to go ahead, then.