Fast-forward 70 years.
Jim Allister, who like Churchill had had an earlier career in his party, departed for the political wilderness on the issue of power-sharing (or, in translation: 'to be an isolated voice warning of the need to rearm against Sinn Féin').
As in 1940, in 2010 the country is in crisis – now, though, 'the country' is only the unionist community. Robinson is Chamberlain, and appeasement of Sinn Féin is the risk. So far Robinson's party, the DUP, are just about supporting him, but there are at least 14 MLAs (out of 36) who are not. Things are looking bad.
It would only take a small additional push for the majority of the DUP to go over to the anti-Robinson camp, and then, like Chamberlain, he would be forced out.
At that point, faced with the fruition of everything that
The DUP, shorn of its appeasers and returned to its anti-agreement roots, would easily merge with the TUV to form a large block of negative backward-looking unionism. It would be a return to its situation pre-St Andrews and pre-power-sharing. Allister could provide the kind of backbone that such a party needs and loves.
Churchill, of course, was rejected by the voters at the very first opportunity that they had, in 1945. Allister would fare no better.