In any group of 1,000, you will have 250 lazy people who wont pull their weight no matter what (short of a bullet to the head). Read the history of the Mayflower and Plymouth colony for a good example of the fast transformation of productivity when people are working for their own benefit on their own land.
I lived in Red China for the better part of a year in the mid 70s. The collective is not a pretty sight.
You simply cannot create a New Man because it is so antithetical to deeply ingrained human nature.
A simple question is never answered by leftists: why didnt the amazing advances in technology, products and services the past 250 years originate in totalitarian regimes? Even the hilariously stupid CHAZ garden provides proof of collective laziness and abuse of those who do the work.
Hence the item requiring all participants to agree as to the work needing done - the extension is that they would also do the work. The flip side is that people that don’t agree (and don’t work) would have to be ejected from the group, which is what happened in the kibbutzes. It’s also why it can’t work as a governmental system for a nation.
I did say that it was an extremely limited set of circumstances in which it could work.