Well that and the ideology is so amazingly naive/pseudo-religious anyone with half a braincell left to use critical thinking goes into hysterical laughter at the notion of some hand wavy free market that can regulate itself.
You may be right, but one will never know without giving it a shot.
Easy enough to just say: "That will never work." and then never try it, but keep saying it will never work enough times that you accept it as fact.
What I do know is that all the shit our country is currently doing for the economy isn't working, and that can be proven by the long history of data to back it up.
So, if our current system is broken and proven not to work, and you believe the libertarian view is pseudo-religious and would never work, what would work then?
I am asking, because I believe you are most likely infinitely smarter about economic issues than I am, and I know I obviously do not know how to fix the economy, because my solution would involve, "don't spend fucking money you don't have."