Again, you'd have, just to take one example, Thalidomide babies running around because there's no screening process to corral drug corporations that have no interests in public health. You'd have foods laced with carcinogens, as well as toothpastes, cosmetics, etc. You'd have planes flying into each other because nobody's in charge above them, plus contraptions unworthy of flight on their own. Then there's railways and highways, the regulations of which would change every time one hit a state line. You'd have unlistenable radio and TV because anyone with enough money could plunk a transmitter down, and shout out their competitor. Libraries? Gone. And you'd have, again to take one example of the Linbergh baby, criminals taking refuge across state lines for lack of an FBI to pursue them.
In short you'd have chaos. I get the impression that's what you want.
The "free market" is an environment that fosters competition and a lively marketplace of goods and services. It doesn't address needs of the common public interest. Because it can't; it has no motive to do that.