most adults do understand the difference between questioning immigration and being racist

Maybe, but I don't understand the difference between questioning immigration in the name of English culture and racism. What are they going to do to your precious English culture (whatever that actually is)? Who are 'they' anyway - the French? the Scots? the Irish? the Jews? (Sorry, but this kind of thinking goes back a long way.)

I saw an Asian lad on the news the other day, talking about how he crosses the street if he sees a group of white lads on the corner. (In the interests of fairness, the programme also interviewed some white locals, who were telling horror stories about the local Asians.) Anyway, I was having trouble understanding what this lad was saying - blimey, I thought, he's got a broad accent... After a moment I realised it was a broad Yorkshire accent. Born and bred in England, I don't doubt - and in twenty or thirty years' time there'll be plenty of kids with Albanian and Somali parents, speaking English with broad Yorkshire accents. I shouldn't think they'll be going to English Country Dances, though.