The key point is that when these principles are taken to an extreme and divorced from any consideration of the common good or the social and institutional prerequisites for a stable and just society, they can lead to outcomes that are deeply problematic and that can create the conditions for more authoritarian and even fascistic forms of politics to take root.
Here's how this dynamic might play out:
If the principle of "don't aggress" is interpreted in a highly individualistic and atomistic way, it can lead to a view of society as nothing more than a collection of isolated individuals, each pursuing their own interests without regard for others. This can erode social bonds, undermine a sense of shared responsibility, and create a vacuum of meaning and purpose that can be filled by more authoritarian and collectivist ideologies.
Similarly, an absolutist conception of private property rights, without any recognition of the broader social context in which those rights are embedded, can lead to extreme inequalities of wealth and power, and a sense of disenfranchisement and resentment among those who feel left behind. This can create fertile ground for populist and nationalist movements that promise to restore a sense of belonging and purpose, even at the cost of individual freedoms.
Moreover, if the state is seen as nothing more than a "night watchman" whose sole purpose is to protect individual rights and property, it may lack the capacity and legitimacy to address collective challenges and provide the public goods and services necessary for a healthy and stable society. This can lead to a breakdown of trust in public institutions and a further erosion of the social fabric, creating openings for more authoritarian forms of governance to fill the void.
To be clear, none of this is to suggest that the principles of individual rights, private property, and non-aggression are inherently fascistic or that they inevitably lead to authoritarianism. Rather, the point is that when these principles are taken to an extreme and abstracted from the broader social and political context in which they are necessarily embedded, they can have unintended and dangerous consequences.
This is why thinkers in the classical liberal tradition, and more recently those associated with "state capacity libertarianism" and "liberal nationalism," have emphasized the need to balance these principles with a strong conception of the common good and a recognition of the positive role that effective and accountable government can play in securing the conditions for individual freedom and social flourishing.