Apple vs orange.
Chamberlain was trying to keep a war from starting.
Churchill was trying to survive a war that had already started.
Each could be considered reasonable or unreasonable depending on your point of view.
It's reasonable to want to avoid war, but it's also reasonable to want to win a war that you're in.
I should have provided background.
Before Munich, before that filthy piece of TP, before Dunkirk, NC and WC were bitterly at odds, ca 1936. NC wanted to spend the money on social programs, WC wanted to start churning out tanks and planes immediately. NC won out and that is why when Munich came around Britain didn't have the muscle to back up its position and NC was forced to sacrifice Czecho to buy back the time he had squandered.
The contrast could hardly be more stark. A man of peace and a man of war.
How frustrating must it have been to be WC. He was in a position to urge forceful action in 1914 which could well have averted a world war, but was ignored, and the same story repeated 1936ish. Perhaps the most frustrated man in history. Worthy of a Hollywood franchise.
"Scorcher 3": They ignored him once.... They ignored him twice.... (WC throws a lit cigar behind him, walking towards the camera; No 10 goes up in flames) ... They didn't know they would be burned three times.... Now they want him back.... The Queen wants him back.... (Cut to WC: "We will fight those bit**es, we will never be ignored!" (applause)
All clear now?