It is all very sad and very worrying.
There was always a seething mass under the multi-culti surface, but the extremists were kept in check by calmer heads even though they too were concerned about immigration and multi-culti. The referendum now appears to have opened Pandora's box and those extremists now feel free to vent their spleens. I notice that it is Leave voters who are the main culprits and shouting the loudest - though not on here, please do not think that. The authorities are going to have to come down hard to put the lid back on.
I sure hope that things quieten down. I do not want Enoch Powell's fears coming true.