It is hardly "pie in the sky theory stuff" as your own comments (which I will quote in a moment) attest to. The fedgov is neck-deep in education and its engineering of business through volumes of regulations, tax funded bailouts and international agreements and treaties should be plain enough.
We can damn FDR or LBJ all we want, but their choices (and the choices of those generations in electing them) have consequences that have left us in the situation we are in today.
Right there is where you give tacit admission that you don't believe it is "pie in the sky theory stuff." The fedgov has been busy since long before FDR meddling in things the Constitution gives them no authority to touch. You can take the Rokke approach and reply something like "show me exactly where the fedgov wrote and signed a document saying "we are meddling in business against the Constitution" and dismiss the whole idea with that strawman if you like.
So how do you propose we create "free markets" today without help from the fedgov?
That is the point of having individual liberty and freedom. No one needs to create a free market a free market will exist whereever a producer and a consumer agree to do business with each other.
And just because the fed gov has a vested interest in max profits, max trade and max use of human capital as they see it—does that mean that we are required to participate?
Firstly I would complain that the fedgov has no business or authority to have any vested interest in those things. It is simply supposed to keep the peace so that individuals can do what they do.
Ultimately no one has to participate at all. Most people want to produce and, at some level, have to consume. If the government sets up regulations backed by law that govern how you produce and how you consume you pretty much have to participate if you want to do either.
For example; you cannot grow tobacco unless you have the right permit and grow it where the fedgov says you can. The American Spirit Tobacco Co. tried that. They wanted to have American Indians grow some of their tobacco on Indian land in the west and market it as such which would have benefited a struggling tribal economy and the company. The fedgov said "no dice." That's not my idea of a free market.