To expand on this:
So basically, like, what are the things we know that humans do, if given enough time and calories to survive? In no particular order: Reproduce (sex)
Search for Calories (hunt & gather, protection from elements)
Develop Survival-Based Moral ('kill my sex-object = bad thing, take my calories = bad thing)
Use Language (spoken, then most times written [in pursuit of logistical efficiency wrt caloric acquisition and consumption])
Spiritual Phenomenon (goes along with language, in terms of making meaning of the world, leads to art, among other things)
Expand Horizon (i.e., "go forth and prosper," in an effort to increase probability that genetic information survives)
So, basically no matter what, humans (on the whole) are gonna do these things. We have the odd clever-ape that recognizes its own being consciousness, or the facade of its moral system, or its spiritual desires, (e.g., Sartre, Heidegger, Nietzsche, Campbell, etc.) BUT ON THE WHOLE homo sapiens will do these things, because for the incremental progression of evolution, we cannot shut this fucking thing off, though we can constantly recognize (ha...re-cog...constantly!) its presence, sort of like a combination of the Heidegger & Nietzsche modes of existential realization of Dasein/Self (I know Nietzsche would shutter at this, and I know he's not abt metaphysics, but its his own fault he wrote poetically and locked himself into these possibilities, bc he didn't tell me explicitly not to...and yes, I know Martin starts with being and not consciousness, but the Dasein superstructure works here).
All things considered, this is why communism doesn't work. One can clearly see that there isn't some 'non-existential logic' that comes with the superstructure of being a homo sapien, it's just those things listed above (and perhaps some others that I didn't think to mention?). I won't except altruism as an argument here, simply for the fact that it only extends to the sort of 'Polis Is This' idea that Charles Olson acts out in his poetics (check his resume, studied archaeology of civilization at Harvard, or some shit like that).
This being said, I think it's fair to assert that Christianity is basically the best chance at getting some sort of true-communist system to work, and one might even go so far as to argue that it did, for a long time. To reference the ref'd post, I think the exact problem is that the workers will always rise up until they secure some amount of comfortable wealth, and then they will hoard (bc $$$ = calorie/sex points), bc they are human, simple as that.
The big problem with all this is that if you're smart enough to enact this system, you can't rly do it in good conscious, bc if more than a handful of philsopher-kings are behind this, then the cycle repeats itself and the hoarding happens (or they recognize the banality of power and life and become the Nietzsche ascetic).
Thoughts?