In chapter 80 of Conceived in Liberty, his history of the American Revolution, Rothbard addresses modern attempts to re-frame the American Revolution as some sort of "conservative" revolution that merely preserved a way of life, and was not a radical departure from the past:
The Americans had always been intractable, rebellious, impatient of oppression, as witness the numerous rebellions of the late seventeenth century; they also had their own individualist and libertarian heritage, their Ann Hutchinsons and Rhode Island quasi anarchists, some directly linked with the left wing of the English Revolution. Now, strengthened and guided by the developed libertarian natural rights ideology of the eighteenth century, and reacting to aggrandizement of the British imperial state in the economic, constitutional, and religious spheres, the Americans, in escalated and radicalized confrontations with Great Britain, had made and won their Revolution. By doing so, this revolution, based on the growing libertarian idea pervading enlightened opinion in Europe, itself gave immeasurable impetus to the liberal revolutionary movement throughout the Old World, for here was a living example of a liberal revolution that had taken its daring chance, against all odds and against the mightiest state in the world, and had actually succeeded. Here, indeed, was a beacon light to all the oppressed peoples of the world!
The American Revolution was radical in many other ways as well. It was the first successful war of national liberation against western imperialism. A people’s war, waged by the majority of Americans having the courage and the zeal to rise up against constituted “legitimate” government, actually threw off their “sovereign.” A revolutionary war led by “fanatics” and zealots rejected the siren calls of compromise and easy adjustment to the existing system. As a people’s war, it was victorious to the extent that guerrilla strategy and tactics were employed against the far more heavily armed and better trained British army—a strategy and tactics of protracted conflict resting precisely on mass support. The tactics of harassment, mobility, surprise, and the wearing down and cutting off of supplies finally resulted in the encirclement of the enemy. Considering that the theory of guerrilla revolution had not yet been developed, it was remarkable that the Americans had the courage and initiative to employ it. As it was, all their victories were based on guerrilla-type concepts of revolutionary war, while all the American defeats came from stubborn insistence by such men as Washington on a conventional European type of open military confrontation.
Rothbard also notes, as many historians of the loyalists have noted, that the American revolution was a civil war of sorts between the patriots and the loyalists, both of whom were native to the colonies. The revolution was not simply some matter of expelling a foreign power, but of subjugating a local population that was seen as allied with an enemy:
Also, as in any people’s war, the American Revolution did inevitably rend society in two. The Revolution was not a peaceful emanation of an American “consensus”; on the contrary, as we have seen, it was a civil war resulting in permanent expulsion of 100,000 Tories from the United States. Tories were hunted, persecuted, their property confiscated, and themselves sometimes killed; what could be more radical than that? Thus, the French Revolution was, as in so many other things, foreshadowed by the American. The inner contradiction of the goal of liberty and the struggle against the Tories during the Revolution showed that revolutions will be tempted to betray their own principles in the heat of battle.
Nor is it true as claimed, Rothbard notes, that the new country carried on much as it had before t he revolution when the British tried to upend an established way of life. No, it was the Revolution that upended an established way of life that destroyed an entire established system:
Again, this view betrays a highly naive concept of revolution and of wars of national liberation. While the focus of the upheaval was, of course, Great Britain, the inevitable indirect consequence was radical change within the United States. In the first and most obvious place, the success of the revolution meant inevitably the overturn and displacement of the Tory elites, particularly of those internal oligarchs and members of governors’ councils who had been created and propped up by the British government. The freeing of trade and manufacture from British imperial shackles again meant a displacement of Tory favorites from positions of economic privilege. The confiscation of Tory estates, especially in feudalism-ridden New York state, had a sharply democratizing and liberalizing effect on the structure of land tenure in the United States. This process was also greatly advanced by the inevitable dispossession of the vast British proprietary landed estates in Pennsylvania, Maryland, Virginia, and North Carolina. The freakish acquisition of the territory west of the Appalachians by the peace treaty also opened vast quantities of virgin land to further liberalize the land structure, provided that the speculative land companies, as it increasingly appeared, would be kept at bay. Revolution also brought an inevitable upsurge of religious liberty with the freeing of many of the states, especially in the South, from the British-imposed Anglican establishment.
In other words, the Revolution involved the mass confiscation of enormous amounts of land from the Tories. The land was then redistributed to new people through systems chosen by the new legislatures. There's nothing "conservative" or "incrementalist" about this. It was simply a matter of one ruling party being thrown out by force, with the spoils being redistributed by the incoming ruling party.
The American revolution was very much in the tradition of the French Revolution and others, Rothbard contends:
But the deep-seated radicalism of the American Revolution goes far beyond this. It was inextricably linked both to the radical revolutions that went before and to the ones, particularly the French, that succeeded it. From the researches of Caroline Robbins and Bernard Bailyn, we have come to see the indispensable linkage of radical ideology in a straight line from the English republican revolutionaries of the seventeenth century through the commonwealthmen of the late seventeenth and eighteenth centuries, to the French and to the American revolutionaries. And this ideology of natural rights and individual liberty was to its very marrow revolutionary. As Lord Acton stressed of radical liberalism, in setting up “what ought to be” as a rigorous guidepost for judging “what is,” it virtually raised thereby a standard of revolution.
