The Chamberlain excuse is weak if you actually understand history. However, since that doesn't play into "Obama is bad," it's not surprising that you have no concept of it. Chamberlain had the consent of the people to do what he did, the people of Britain didn't want a war at that time. Also, the forces of Britain and France weren't good enough in 1938 to stop Hitler. If they had tried then, the war would have gone much worse.