Not to hijack, but can people stop implying a "free market" actually exists anywhere in the world -- as long as there are governments, taxes and tolls, it is just by definition not the case, regardless of your or my opinion on this simple fact.
It depends on the viewpoint, I guess. Isn't everything a free market in a way? Like in communism, you can trade away as you want, as long as you are prepared to pay for it (with the risk of being killed or whatever).
I am actually very much pro free market, but I still think it is dangerous to assume that all things will just sort themselves out fine. They probably will - to the satisfaction of somebody. That somebody might not be you (or us), though.
Sure, "nature" will probably survive one way or the other. But as an example, what if I happen to LIKE whales? Is it wrong to be concerned about their survival? I think not.