There is no unrestrained capitalism.
This is the doing of the managerial class, and they managed to get so much power because of central banks. Especially after 2008 the major central banks have bought assets on the stock market and financed all kinds of projects without a second thought.
They print money and make companies like amazon huge.
This is 100% government 's doing. Total fake economy.
In a free market there is no limited liability, but even if there was companies are subject to profit and loss. The profit and loss mechanism has bren destroyed by goverment, companies now operate based on incentives derived from what's fashionable among the managerial class, not what serves customers and make money.
Also I would not exclude that these companies can be put in their place by using already existing laws. No need for new laws, it's a matter of political will.