The law of consecration has been tried, so there is history: while pioneers were crossing the plains (common efforts to care for the migrating poor, planting crops other later travelers would harvest, etc), one source being a somewhat new book "Saints", new chapters of Vol. 2 still being released, with citations to much source material. Also, Orderville (wikipedia references include Orderville, United Order, and Law of Consecration). There are probably others.

Edit: none of this says people are perfect, but that this aspect of Christianity is very different from communism. (I had a whole semester class on Stalin, and also some limited reading since.)