If you want to say that something exists you need to define that thing first. Otherwise anything that follows couldn't possible be rational on account of logic.

I also refer to my other comment in this thread (long, I refer to Apple and Epic) about why a definition of monopoly is necessary and also impossible.

I will add the exception of a government granted monopoly. In that case the government passes a law in which a company or whomever has the unique privilege to supply a product to the market, the precise definition of which will be given in the government's law.

Whereas you have not given a definition of a monopoly I will define a free market as the array of voluntary transactions between people/groups in a society, absent any threat of violence.