That’s the thing. Anyone can be a shareholder of a corporation. There is nothing preventing anyone from buying shares. You just have to be willing to risk your money to buy said shares that may or may not yield any returns - i.e. risk throwing away your money.
> Democracies have a lot of experience with representative bodies that can support faster decision-making while still having some accountability to the people. It's a straw-man to to present worker representation as being direct democracy for every decision.
On a separate note, THE people already have democratic control over the most powerful organization in the land, their government.
The government can unilaterally (corporations have no real say) set laws and even break up corporations or even just outright seize them (i.e. nationalization).