I think its a reaction to being governed from London, Manchester is now becoming anti-London, Liverpool is anti London, the further north you get the more you become anti-London. Its the feeling of alienation and not being close to power that is the issue. Feelings that you are being ignored and the huge Tory majority in Southern England has all the power to decide what happens in the rest of the UK when they don't understand we are different to the South of England. Brexit has compounded this, the English majority felt they were being ruled from Brussels but those who were not from the predominately leave rural south felt more in tune with Brussels than London for the simple reason they were sick of diktat from London. People arnt daft, they see Billions being spaffed on London's infrastructure whilst we in the north have trains from the 1960s, they see wealth being sucked away from their communities to London. Its London itself that in my opinion that has become too powerful and the City of London appears to have far more influence than it should. There are many reasons for that, the main one was the Thatcherite deindustrialisation of the North and destruction of traditional working class communities that relied on coal, steel, shipbuilding. London concentrated on finance which after the big bang became even more powerful and is indicative of capitalist excess whilst the North have a feeling of being ignored and misunderstood, with traditional jobs being replaced by warehouse work for the likes of Amazon and Ashley the cunts company. The north in effect has become as detached from London as the south feels detached from Brussels. It doesn't surprise me that independence movements are growing In Scotland, Wales too, NI will maybe united with the Republic in the near future too, but this is not only a UK thing, Catalonia wants independence from Madrid, ETA still harbour hopes of a Basque country, South Tyrol might want to become separate from Italy,Corsica wants independence from France, Belgium is split between the Walloons and the Flemish. Already Yugoslavia has disintegrated, Czechoslavkia has split, the only constant is Germany and there is a reason why it is a constant and that is it is a Federalised state where regions have power to act for themselves and Germany although it has power bases in Frankfurt, Berlin and Munich none dominate to the extent London does in the UK.