You are limiting the control of production to that which the few in government decide instead of literally anyone doing it. You seem to think that ownership in the West is limited strictly to the privileged and that labor is not compensated. That is where true leftist efforts have failed throughout history. The reason that laborers, engineers, and farmers in the West consistently vote against government economic control and never revolt is because they are the most compensated in society on average. This is especially true in times of hardship. The reason why people are so invested in their system is because 66% of people own their own homes. Anyone can buy enough machinery to make things and there is a robust market for handcrafted goods competing with those that are mass-produced. Additionally, no one company controls over 30% of the market in any sector so monopolies are not an issue in the eurocentric West.
The real issue with capitalism at its base is to keep a level playing field and healthy markets. That includes banning anticompetitive behaviors and good governance along with programs (That still use contracts at their base ultimately) to address externalities. The equivalent issue on the socialist side is to centrally plan literally everything as a state-sponsored monopoly that you just trust has your best interests at heart.
A government that controls production cannot be held accountable by those who need it to survive. It is a power imbalance baked into the system at a governance level. Additionally and most importantly, there is no counter to the power of government should it start to slide away from democratic accountability beyond the dissolution of the system as a whole. This is very consistent with history.
I have so far addressed all points so I am not sure why you are suggesting that I would not. I am starting to run out of energy here though. The burden of proof should not be on the existing proven system but instead that of the proposed radical change. An example of this would be the UBI tests that are occurring in various areas. In many of ways they are failing but at least they are trying to provide some proof before forcing through changes that have already been tried and failed in multiple countries and societies throughout the last hundred years; each progressing from trying decentralization, to consolidation, to ultimately a loss of trust in society in the centralized government and change back to private ownership.
You could even combine the efforts of the individual workers unions (Soviets) and address the production and starvation issues that the union of the soviets have been experiencing... Oh wait, that's exactly what happened. This is why these arguments get dismissed out of hand. You are rewording very old arguments and claiming they are new ideas. I am not avoiding your question. I am addressing it with history.
The big difference between workers-led organizations in a consolidated capitalist system and a socialist one is worker choice and consent. In a socialist system, they have none or it fails very quickly.