It is very easy these days to put all the blame on Chamberlain, but it took about 10 months of work by the Foreign Office folks and the Anglo-Saxon media to work up the masses against the "monster Czechs" who were discriminating (cracking down) against "ethnic Germans" in Czechoslovakia who were only "fighting for more rights", including the right to use only their language, etc.
As usual, The Times etal. pulled through and Chamberlain was widely acclaimed as a hero (for a while).