The sort of people who set off class wars as a hobby have very particular classless societies in mind. The average left-wing revolutionary is not poor. He is a homicidal dilettante from the upper classes with a burning conviction of his own importance that he is unwilling to realize through disciplined labor. His revolution climaxes with a classless society in which he is at the very top.
Not near the top, not adjacent to the top, as he usually was before, but at the very top.
Utopia has a class system. At the top are the thinkers, the philosopher kings who develop plans based on how things ought to be and then turn them over to lesser men to actually implement. They are the priestly class of an ideological movement whose deity is politics and whose priests are politicians.
In a planned economy, they are the titans of industry and finance, they are the heads of banks and the men who move millions and billions around the board, and they are utterly unfit for the job. But they also make decisions in matters of war and science. And in all things. They measure political heresy in all things and all the activities of man are measured against their dogma and rewarded or punished.
This is the way it was in the Soviet Union or Communist China. But take a closer glance at the White House and see if you don't spot the occasional similarity.
In the middle of Utopia's class system is the middle class. This is not the middle class you are familiar with. There are no small business owners here. No one striving to make it up the ladder. Utopia's middle class is the bureaucracy, the interlinked hive mind of government and non-profits.
At the top of Utopia's class system are the philosopher-planners who issue the regulations. Or rather they offer objectives. The bureaucracy filters them through successive layers, transforming grandiose ideas into stultifying regulations and each successive layers expands them into further microcosms of unnecessary detail. This expansion of regulations also expands the bureaucracy. One feeds off the other.
Utopia has no lower class. That would be dystopian. Instead it has a client class. The client class is what used to be known as the working class. Utopia however transforms it into the welfare class.
Clienture transforms the working class into the welfare class. The destruction of the conditions under which the working class can exist forces its members either upward into the bureaucracy, a feat that is only possible for the younger generation willing to undergo the educational process, or downward into the welfare class.
The client class justifies the existence of Utopia's upper and middle class which are, in theory, dedicated to public service, to remedying the ills of an unfair society, which has been made fair by eliminating all free will and individual choice. But the client class exists to be subsidized. And its subsidies justify the subsidizing of the upper and middle classes of the planners and the bureaucrats.
This is Utopia's crisis.
Its upper class of philosopher kings expect to live like kings. They want to vacation in Aspen and New England. They want Bernie's summer home and Hillary's flat broke houses. And that does not come cheap. Utopia's middle class expects to live the way that our middle class does. And yet none of them actually produce anything. They will, in Obama and Elizabeth Warren's "You didn't build that" formula, claim that their public service makes the condition of productivity possible.
There is one problem with that. Their public service actually inhibits production. Whatever the rhetoric, they spend all their days killing the geese that lay the golden eggs. And then they are insulted when the goose doesn't recognize their contribution to her golden egg-laying.
Utopia has a series of interdependent classes that are subsidized by a productive class that is being starved out of existence. The inevitable outcome of such a system is one in which the lower classes are worked to death to subsidize its betters and the middle class is robbed by the upper class.
The left thus creates the predatory economic system it preaches against as a way of life. Its own abuses are inevitably worse than the system it replaces because it is not only exploitative, but its exploitation actively inhibits production.