fe.settings:getUserBoardSettings - non array given[kc] - Endchan Magrathea
 >>/21690/
> Getting Britain out of the war would be even bigger than that. 
Not really. Even in our timeline, Britain was close to accepting the peace offers. The Earl of Halifax who refused the position of PM wanted to make peace with Germany for example. If they actually saw the Britons get annihilated at Dunkirk, it's very likely they would want to make peace with Germany.
Much of Britain's will to wage war was a Churchill thing, just to let you know.