All or nothing fallacy. People have VASTLY different degrees of ownership, and this is reflected in their degree of control.
> Nobody is stopping you from creating a coalition of similarly minded shareholders
Such coalitions already exist. They have names like BlackRock, Vanguard, and Fidelity Investments [1]. Good luck competing with them. Especially if you abdicate your role in democracy, don't agitate for legal change, and restrict yourself to only market-based means of change (not BlackRock and ilk though - they use every lever available to them, they don't handicap themselves).
[1] https://en.wikipedia.org/wiki/List_of_asset_management_firms
