Greetings!
Well, Communism, in very basic form, *can* work. We know this from history, as well as current anthropological and sociological study. However, the ingredients that go into the basic recipe for some level of working success have very little in common with modern Communists or Marxists. The essential requirements for a successful communal society embracing a more "Communistic Style" are the following attributes:
(1) RELIGIOUS/CULTURAL UNITY: Singular Religion/Culture of all participants
(2) SMALL SCALE: The community is--and remains--small in scale. A few hundred, maybe a few thousand people at most living in such a community.
(3) VOLUNTARY PARTICIPATION: Everyone living within such a community does so entirely voluntarily, of their own free will, and suffering no form of imposed punishment or retribution against them for seeking to leave such a community, and live in an entirely different kind of community.
The historical examples I can think of are some communities in the Bible; Various American Indian tribes; and the Jewish Kabutzes. All, interestingly, also embrace each of the three essential attributes in order to approach any kind of working success.
None of that really stands as anything workable or realistic in the modern world, with nations of hundreds of millions of people, vastly different political, cultural, and religious views and ways of life.
So, at the end of the day, the naïve, moron modern Marxist can choke on the deeper truth that what they support as an ideology is deeply unchristian, wicked, tyrannical, and evil.
Semper Fidelis,
SHARK