Both G Brown & his closest ally Ed Balls are said to believe in the political theory/strategy/tactic of “dividing lines”. Draw a line on every issue such that people are forced to choose one side or the other. Us or them
In the long run this will work only if the pie remains intact – no actual cutting, no knife is involved, you are just drawing diagrams, placing a notional line across the pie, making different patterns
If you cut the pie then you are left with diminishing sections on your plate
And eventually you are the only two crumbs left