I thought you were talking about Brexit? ("I think Labour lost a lot of votes in the brexit constituencies (wards) because the mass of the working class got fed up with being labelled "thick racists", especially by a tiny left wing liberal elite inside the M25 circle.")
I certainly agree that Labour has been annihilated in England (as opposed to Wales, Scotland, and N Ireland, where the Tories are either almost non-existent or else a minor presence). I think there are several factors for this:
an electorate who are often duped by personality rather than substance (BloJob)
the success of the vaccine roll out, despite the government's best efforts
the 'Brexit factor' prevailing in the North who for some reason don't seem to include BloJob as part of the 'metropolitan elite' who have ripped them off for decades
the swing of the pendulum
And on that last point, you may or may not remember the prognosis after 1997 that the Tories "had been wiped out for a generation". The pendulum will swing back again, though currently I don't see how.