RickH - I have lived near Gravesend since the early 1960s and you are right that it has been a successfully integrating community - from the days of Pier Road, through the crash helmet riots, to (I think) the country's first Sikh mayor and to date. That is one reason why the apparently kneejerk reaction of the Chantry school is disappointing - but as you also know the Milton and Denton region is iffy in bits. I live a bit further away now but I don't see the more recently integrating communities as more difficult - although I have heard some bad stories about eastern europeans and there was the running knife fight on Gravesend station between rival east european gangs last year or the year before.
Les, you persist in blurring things. The point is to consider the evidence. You have provided one quote using the word "niggering", and have not provided its source, only a place where it appeared.