It seems to me that many utopians treat life as an abstraction, and fail to think through concrete details.
None of the Bolsheviks, I suspect, thought beyond murdering the aristocracy. They have this meat cleaver, and the basic implementation process is killing or exiling whatever does not fit the plan. The plan, of course, is the eradication of nonperfection, which is defined on the fly by their leaders.
But you watch this, and if the art of the sculptor is removing what is unnecessary, these fools leave a pile of marble dust, and wonder why it isn’t beautiful. Then they pound the dust crying “live, LIVE”.
You: imagine in DETAIL what you would like your world to be like twenty years from now. If you have children, or nieces and nephews, what would you like their world to be like? What sort of work do they do? What do they buy with the proceeds of their labor? What are they allowed to do? What sort of government, if any, do they have? What are the values they are educated to embrace?
I look at, say, the Greek Communists, and wonder how they can be so stupid. Money does not grow on trees. Inventors do not invent consistently or well for the “common good”, but for themselves. Actions have consequences.
So many societies, seemingly, have yet to learn this.