People generally feared the lack of freedom to live their lives they way they wanted to. This included the freedom to assemble and protest, the freedom to work where they wanted to, and to have the ability to grow their wages. It also involved the freedom to travel, and the freedom to worship (if they were of a faith) where they wanted to, when they wanted to, and how they wanted to.
Communism limited private ownership, which meant many people were not motivated to expend time and energy and resources to serve only the authoritarian government over them. This contributed to a lack of innovation and less efficiency among the working class. As stated in Post #2, people did abhor the lack of political freedom, and the curbs (censorship) concerning freedom of expression, whether by word, by art, in print or by any other means.
German Socialism and Weimar Democracy