Having walked the buggers, I can confirm that Chesham to Chalfont & Latimer felt the longest distance apart, but with Covent Garden - Lester Sq the accepted closest, it blows the 'on the same line' thing apart. Great Portland Street and Euston Square on the Met are fairly close.
True. It's fair to assume most Tory remainers voted remain out of pragmatic concern for the economy whereas Labour remainers did so because they'd been indoctrinated into believing voting to leave was racist. This is also reason for hope.
On the other hand, Grenfell has been an absolute gift from the heavens for Labour.