If you believe that people who are best at doing specific things should be the ones doing those things, and that people who work better than others should get higher compensation, then you shouldn't be for Communism.
If you believe that positions like manager or factory owner should be voted on, whether or not the person being picked actually knows how to run things, and you believe that everyone should get the same amount of pay pased on the job position, regardless of how hard they work or how difficult their job is, then you should be for Communism.