It would help if you elaborated on your post, but I will make some comments. Do you mean that Socialist economies are not good responding to market demand? That is a valid point if production is controlled by government officials rather than by consumers.
I don't know what you mean by communal living. If you mean communes where people live and share together, they have proven, for many reasons, to be difficult to sustain. Cooperative ownership of a business is another matter: what they generally lack is capital, and they can suffer if they fail to assign good leaders to administer them.
I mentioned in a prior post that I agree with the basic tenets of Marx's work on Capital: I read him, however, as a scholar. I wanted to know the limits of his theory and works. I wasn't trying to memorize them like some self-styled Marxist that wants to cite him biblically. Furthermore, there are some important things that have evolved with Capital that have good valuable: entrepreneurship and innovation. Any social order that may eventually supplant Capitalist relations will benefit from those advances in economics.
The fundamental underlying problem is that Capital results in a group of people with disproportionate power at the expense of others, and it only gets worse over time. Weber pointed out that this rise of an elite extends beyond those who own capital to those that control it. I don't know that Marx really anticipated that, but it is of little consequence because one could hardly distinguish them as they have blended together.
When I say that I don't like Capitalism, I don't mean that I don't accept and vigorously support democratic institutions starting with the Greeks. Humanity seems to be moving in the direction of democratic institutions, and societies based on old hierarchies like one sees in the Middle East or Africa will be replaced over time with social institutions that reflect the advances of Democracy. That is my hope for places like the Pashtun region between Afghanistan and Pakistan.
Some Communist parties have failed to heed that lesson. The Soviet Union, North Korea, Zimbabwe, Pol Pots regime and others act as though the dictatorship of the proletariat means that they are dictators. The original concept from Lenin, I believe, is that working people gain control of the government.
Forgive me for rambling, but I have found that Communism and Marx have been little understood because of the purposeful distortion of their views and goals by capitalists. I would suggest that you sit down with some communists if you ever meet any and ask them what they really believe. Also, keep in mind that there are a variety of branches of that point of view. I am not suggesting that you seek to become one or consider it, but I am suggesting that you make sure that you know what they actually want to see in society's future.
I have found that I agree with some on some ideas and disagree with most on certain ideas; still, they are citizens with a right to believe just as you have that right.
God Speed,
David