I don't know if this would provide any comfort to the expelled Sudeten Germans, but had the Benes government merely expelled say, the top Nazi leadership out of the Sudetenland and offered the Sudeten Germans the option of staying in their homeland, the left-wing would never have won their narrow majority of the vote in the Czech elections of 1945. I believe that the Communists and Socialists won a combined vote of about 53%. Had the Sudetens also been allowed to vote, it is probable that the vast majority of their votes would have gone to non-leftist parties and thus it is likely that non-Socialists would have won a majority of the seats in the Czech parliament. As Soviet forces had left the country, such a government would have had a good chance of success, similar to what happened in Finland, and unlike what happened in Hungary, where the continual occupation of Hungary led to the communists taking over. Czechoslovakia might have achieved a Finnish style situation in which they did nothing too anti-Soviet in foreign policy but were allowed an internal democracy.