its plain old fashioned snobbery and years of anti Liverpool press.
I left Liverpool 30 years ago and don’t have a Scouse accent. If people find out where I come from, not that I keep it a secret, out come the ‘jokes’ about everyone in Liverpool being criminals and drug dealers and you get accused of having no sense of humour if you object.
I remember going to London on a school trip, probably 5th year, so 15, 16, around 1980/81. I went to a fairly midldle class school, posh uniform, very strict - we didnt dare step out of line so we were always very well behaved in public. My group of 4 ( so hardly a mob) went to Harrods. We were looking at make up and were asked to leave. We were not misbehaving but we did have scouse accents. Funny how thats stayed with me, gets a bit wearing after 40 years.