It’s always funny when people say this can’t work, when it constantly works better than any current hierarchical structure. All the collectives I’m in work great, and there are tons of worker owned co-ops going strong, one of my activist groups will often go for meals at one after a day of protesting.
Just because you can’t imagine something different doesn’t mean it can’t work. It’s not just a mess of everyone trying to dominate each other, it’s cooperative and there are simple processes to facilitate it. It’s possible to run countries this way.
Hierarchies exist to exploit and abuse.