Why don't you give an example of country that failed miserable with millions of deaths because of too much free markets.The beauty of capitalism is that it works (or seems to work for some people, for the time being) by externalizing its true costs to other countries, other social strata -- and indeed far into the future.
Though mortality rates seem not to have risen (and may in fact declined) in the U.S. during the peak depression years (1930-1933) -- as a global phenomenon, the collapse of a system based on "too much free markets" is generally seen as one of the primary drivers of WW2, so we would have to attribute some share of its 70-85 million fatalities this market-driven collapse as well.
And not just by accident. There's also the fact that "free market" interests and Western financial support were key to Hitler and Mussolini's rise to power in the first place, as the former saw the latter as a perhaps unsavory but ultimately necessary bulwark against the rising spectre of a global socialist movement (whether on the Bolshevik model or otherwise).
Plus the whole European colonial project in Asia, Africa and the Americas, and the several hundred million deaths that it brought to the table. Though to be fair, this wasn't so much a matter of any collapse of the free market system of the time -- but rather of it working exactly as it was intended, from the very start.
And of course now we're headed for a much larger disaster with likely at least as many hundred millions of deaths looming on the horizon -- in the form of climate change and its attendant disruptions, also very much a direct result of "too much free markets".
So there you go.