I don't think it's in a person's nature to follow an ideaology that places the group over ourselves, which is what communism implies. A person sees himself as himself before he sees himself as, well, a brick in the wall. And that's not incorrect thinking - he is himself before the group. Communism asks that you give up your individualism and suppor the group. It's foolhardy and bordering on dangerous for the human psyche.
I am inclined to disagree as we have cultures that are highly group-oriented instead of individualistic. Many Asian cultures fall under this category. Some people can live like that, some cannot.