The problem is that socialism doesn't scale without force. Eventually you'll run out of people who willingly go along with doing things for the greater good. Looking at history, once you get larger than a commune or coop it all falls apart. You need force to seize the means of production, and the leaders of this force never give up their "temporary" powers. You also need force to get people to do the necessary but undesirable jobs, usually resulting in a centrally planned economy, which history again tells us results in misery, famine, and failure.

It is also human nature that most of us want someone that tells us what to do. Humans consistently organize into social structures where there is a leader in charge, whether it is a patriarchal or matriarchal extended family structure, a tribe, a club, a company, or a government entity a leader always emerges.

Capitalism is very much like Democracy. It's the worst system other than all the others that have been tried.