They banned collective bargaining, they can ban anything

You need a lot of money to start something like this, money that usually comes from investors who are expecting a return at some point. And if it gets started with too little funding, the big competitors can afford to sell at a loss for a while to force it out of business.

Something like this would have to be organized by a government, and consequently won't happen under capitalism. Because if a government would be willing to go to that length, they could just as easily punish the companies currently profiting of off people's misery.