The fallacy with American 'free-market' economists is that they don't believe in a free market. Unions are simply an outgrowth of a free market. It's an attempt of people to solidify and even monopolize the capital in order to secure their own wealth and personal benefits. That's free market capitalism, but free market capitalists want no part of such a system. They want a system that is designed to insure the proliferation of an upper class, who is better educated (because of their economic control), more politically influential (because of their economic control), and in the pockets of all the powers-that-be (because of their economic control).
Free market means free market. There are no rules. But unforutanately the people who support such systems have never believed in them and never will.
My music for the disenchanted masses