Then by that same definition, free market is so fragile that it's an impossible pipe dream. Any actor that gains enough power to influence the market destroys t

Then by that same definition, free market is so fragile that it's an impossible pipe dream. Any actor that gains enough power to influence the market destroys the free market by its mere existence. To take it to its extreme -- you cannot have a truly free market with existence of the State. However, if you don't have the State, there's nobody to enforce your property rights.