Are you meaning, in your thread title, by "free market, economic principles" to assume the actual existence of conditions which satisfy Walras' general equilibrium model requirements?* (In the Walrasian model, markets left alone, are expected to respond according to supply and demand and will spontaneously seek a price-supply-demand equilibrium.) Or are you using the term "free-markets" euphemistically? If the former is what you mean, then I am going to suggest two things for your consideration: 1. For the Walras' model to reach fruition, a laissez faire attitude of government is one of the hidden requisites;
2. There are zero examples in history where a laissez faire attitude of government did not preclude a breakdown of the perfect competition requirement of the Walras, general equilibrium model.
Thus, history has taught us that in the macroeconomic world there is no such thing, in the pure sense, as a stable, "free market economy"; but there is little harm in using this term as a euphemism for minimally, regulated markets so long as it is understood to be a euphemism. Sadly, it isn't often understood; thus we still run into calls for "free markets" without any qualification, despite the impossibility of their stable existence, at least in the macroeconomic world.
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* In Walras' model, among several other requirements that are also never met in practice, there must be perfect competition. This requirement leads to an enigma. Laissez faire, i.e., non-interference, is a requirement of perfect competition, but laissez faire always leads to imperfect competition.
Piehole, I see your reading comprehension skills are very poor indeed. I never even referred to a "free market economy" so I am not sure why you even brought it up. I simply asked the democrats to apply free market principles in their thinking before they flood the market with low wage workers. I do understand we are talking about democrats and considering the elites of the democrat party worship Marx, its a lot to ask. I think its safe to say that different economies apply free market principles at varying levels and no market is 100% free. In the US the market gets less and less free every year.