I am not going to put a number to it. I'm simply saying where I live is a place that had significant support for an overtly racist party and voted overwhelmingly for brexit. I was describing my perception of where i live. They do tend not to be massive voters but the referendum had a higher than normal turnout.
I don't know. Imo they didn't need the media to tell them to do something that would get rid of the foreigners. In the aftermath of the result there was a national spike in racist abuse and incidents. Essentially the message was "We won, so **** off home" (as per the phone video filmed on a tram in Manchester).