the Commune catastrophically failed
The Commune was slaughtered by an international alliance of interests aligned with capitalistic and aristocratic interests. We don’t know whether it would have worked or not, but it has brought enough progress in its short lifetime to justify it as better than the rest: free school for everyone, everyone (man, woman, foreigner) can vote and be elected, work is limited in time, etc…
The “reality of the world” doesn’t exist. You make it sound like it’s fate, it’s destiny, but it’s not: humans actively decided to fill the streets of Paris with the blood of Communards, humans actively executed the orders, spread this.
try living like that in anything larger than a small village and you will quickly see that the system is not sustainable.
Then maybe we shouldn’t try to have large-spanning entities. Those are only possible with a highly hierarchical system which is exactly the source of the problem. Better to have a thousand Communes than one big State. Just like internet services. Yes, one big central monopolistic servic can be run but no one here will ever argue it is better or inevitable or “just how the real world works”, because it’s not.