You’d have to come from here to fully understand that. Wherever you go, the accent carries its own stereotypical slurs. I forget which boxer coined it, but the last two ‘acceptable’ forms of racism are to mock the Irish and Liverpudlians.
And that’s before you even get into how Thatcher systemically tried to decimate the City with her ‘managed decline.’ And spending the past 3 decades and more battling the establishment, and subsequent abuse from people the breath of the land over the lies that still stand today with many over Sheffield. And then, laughably, they expect you to come together as one behind the National side and forget it for the duration of a tournament!
To start to scratch the surface of that scab.