I remember some years ago I saw an interview with Alan Dershowitz on Charlie Rose

He talked about racism/anti-semetism etc

He explained that where he grew up there were Italian gangs, Portuguese gangs, Jewish gangs etc

He said 'that was tribalism, not examples of discrimination'

I wonder how much of that (tribalism) is what is what this is all about? After all what Canadian doesn't know what sort of 'hyphenated' variety of Canadian they are?