It sounds like you're more interested in the few from the majority deciding everything on behalf of the minority. It feels like you understand the problem with our bourgeois democracy, but use it as a bludgeon to attack true democracy. We can decide to elevate the voices of minorities. We don't have to perfectly model our planned economy based on previous attempts, instead we can create our own system based on our culture and collective experiences. One of the huge failures of the USSR was not ensuring people that identify as kazakhs were part of the governing body of Kazakhstan. We don't have to repeat mistakes, we can choose to learn from them. I imagine elected reps from unionized ethnic groups to help make guiding principles for governing the commons by the commons. It may work, it may not. I don't know, but that doesn't mean we can't try.