That's an insult to Chamberlain. Chamberlain went to Munich, because he knew at the time Britain wouldn't be ready for war for at least another two years. And he made damn sure after Munich, they would be ready.
Actually Chamberlain made the mistake of thinking he could reason with a mad man. Hitler lied to his face...in a very calculated way in order to buy time to take over parts of Europe he had his designs on all the while telling Chamberlain they were only interested in reuniting the Sudatenland and the already annexed Austria and nothing more. He kept England distracted with talks and a four power conference until he and Italy were ready.
Then after Chamberlain came back to London and held up that scrap of paper and declared "peace in our time" had been achieved...and with Hitler claiming that he had no more interest in any more territory...he promptly invaded Poland and introduced the world to the Blitzkreig.
“The enemy did not expect my determination,” he said. “Our enemies are little worms, I saw them at Munich.”
That is exactly how the radical Muslim terrorists view anyone who wants to try and reason or negotiate with them...they are "little worms"...and they would do to Corbyn and any other soft spine European "leaders"...what the Austrian Corporal did to the leader of the British Empire.