Never heard or read anything about this in all my years following football
It's more a historic thing and not as stark as in Scotland though still real in the estates of Manchester. Anyway, scum are scum. Leeds won 4-0 tonight so there's cause for celebration.
what accent is this
The other side of the mountains from me but here's my guess.
Not Crewe but elements of it. More pennine. Too midlandsy to be stereotypical Lancashire but with a 'western' catch and there are "accent isolates" there that sound a bit like that, especially in Burnley and Bacup, particularly Burnley that has that hard sound and the open vowels. Too far north to be Congleton or Stoke. Hard to say but probably somewhere driveable from Macclesfield and south Stockport.