The idea is to replace these government positions with private positions.
Remember feudalism? Some guy with all of the capital - which, in those days, meant arable land - basically got to dictate how things worked, because he had the stuff you, as a peasant, needed to live. He was called the king. If you didn't do what he wanted, your life got cut short. Government was just one guy's ideas enforced by his brute squad. In many ways, it was a sole proprietorship. Eventually, nobility was required to administer the land, and that nobility eventually turned into a structure that could keep the king somewhat in check, lest they carry out a coup. They became the administrative state. Today, we have legislative, judicial and executive bodies that - at least ostensibly - need to win election in order to do the same thing, thus replacing the nobility.
That's the ultimate goal here: the dismantling of the administrative state. The administrative state carries out laws made by a body - in this case, Congress - that, at least in theory, puts society's desires at the center.
A number of these laws directly impact the ability of capital holders to generate more capital. Since the people holding this capital think that the only reason humans do anything is to create more capital, they go to any lengths to keep society's "unprofitable" desires at bay.
Since the accumulation of capital can result in monopoly, you will, at some point, have someone controlling all of the capital again. This is a return to feudalism. You won't be swinging a scythe in a field in a toque and tunic, but the structure will be the same.