A "free market" is a contradiction in terms. But politically, it is a wonderful illusion to sell.
No market of any size, dealing in goods of substantial value, can exist or survive without a robust regulatory framework. There must be police or guards to prevent pilfering and outright theft or robbery. Courts are essential to arbitrate the inevitable disputes over quality, payment, delays, cheating, etc. Standards and enforcement officials are desirable if goods such as food and drink are being sold - and so on. Once such an official framework exists, the market is no longer "free". The US government has long been making these facts crystal clear by preaching about free enterprise, free trade, and free markets while habitually preventing them from happening. Where is the "free market" when "sanctions" are imposed (illegally) on arbitrary traders?
The USA itself is the best demonstration that free markets do not generally exist, and if anything like one does appear, it quickly decays. Because corporations and other entrepreneurs hate competition and do their very best to destroy it. Their best weapon is the cartel - evrywhere illegal, but in practice impossible to prevent.