You are completely in your rights to get together with your fellow employees - or anyone else - to do anything you want.

And others are entitled not to pay you to do things they don't want you to do.

Nobody is forced to do things they don't want.

Nobody is forced to pay money to others.

But employment is an agreement between people. The employer agrees to pay, and the other agrees to follow directions of the employer (within the limits of their specific agreement).

If you go to a restaurant and order a burger, and they instead bring you a cake, you'd be well within your rights to refuse payment and complain. The fact that the chef wanted to make a cake is irrelevant, because the chef is being paid by you. (In contrast, if you were to go to friend's house, and he gave you a cake, you could not complain because you're not paying for it.)

The value created by employees rightfully belongs to employees and should be created on their terms. It isn't employees who are hired by managers, it's managers who are hired by employees to manage and sell the things they create. Employees ought to have the right to dictate the terms that their managers are being hired on.

If you want an equal relationship then go work for shares in a startup with no salary, however most workers favors certain money. Employment agreements as they look today fundamentally favors the employee over the employer, you are trading certain value "an exact amount of $$$ per month" for uncertain value "some unspecified amount work might get produced which maybe can get transformed to money in the future". If the uncertain value produced is too low then the company has no reason to continue betting on your future, so they end the agreement.

Each person has the right to dictate what economic arrangements they will participate in. This does not mean they have the right to dictate what arrangements other people will participate in.