We can't just cancel brexit.
The government needs to revoke article 50, close the departments for international trade and exiting the EU, then take all the budgets allocated to these, plus the money for no deal prep, plus a good wodge extra and open a new department for regional development and investment with sub ministers for the North of England, rural England and coastal England.
It's not good enough to waffle on about northern powerhouses but not do much in reality. And there needs to be a recognition that there isn't a north/south divide but lots of pockets and areas of deprivation. I say that as someone living in a poor area of Cornwall (so poor they wouldn't let the Olympic torch run through it).
Then they need to build social and affordable housing and address the issues of universal credit.
Yes it would cost money, but if it's not done then after brexit we will still have all the same problems. The government seems to have money to waste on fridges and extra border staff and replacing all the work that the EU currently does that we share costs for.
And the right wing press and the media needs to take a long hard look at itself and ask itself if they have played a part in undermining our social cohesion. I'm not talking about reporting on actual news, but all the benefits bashing programmes which made people at the bottom of the pile feel like shit and all the immigrant bashing news and all the shit blamed on the EU instead of our government because politicians and the print media have had a democratically dysfunctional relationship.