Hey…in exceptional circumstances, the Spiritual power has the inherent moral Right to intervene in the secular sphere and function as the Temporal power, for the good of all…
Firstly, by sheer metaphysical logic, the earthly kingdom is of necessity subordinate officer or servant to the Spiritual Militia of the Church. The beliefs and errors of Nihilistic modernity mean zilch here, for what counts is what is ontologically, axiologically and metaphysically true–not the emotional vehemence of the enemies of the Church, or the quantitative shadowy emptiness of the numbers on the side of Her enemies! Quantity means zilch, metaphysically, logically, morally, politically, in every way.
Real Catholics need not become limp-wristed, masochistically self-defeating here and cave in to anti-Catholics and the irrationality of their empty arguments! No concessions at all!
The Roman Empire was self-imploded. Injustice was rampant. Administrative law ceased to exist. The Roman “race” was morally corrupted to the core, its senatorial class a shadow of its former self and oppressive to the commons; and then the Nordic-Germanic invaders, whose only rule was tribal fist-law, came in a sanguinary blitzkrieg, set a large portion of the Western Imperium ablaze, pushing down what was already practically fallen; and the Germanic sub-tribes and warlike Mannerbunde possessed the morality of
a gangsterism outshining even the brilliant decadent immorality of the necrotic, libertine Roman nobility. The Nordic-Germanic tribal leaders, carnage and warfare flowing in their veins, usurped the crumbling Imperial Roman and Byzantine authority, and claimed a feudalistic independence from all remaining imperial power, establishing themselves through sheer Terroristic Warfare as the new self-appointed, self-ennobled “aristocracy” of Europe. Everything was in chaos. The Romans and Germans were disordered in the extreme, each in their own ways. The idea of higher ethical justice…and State as Temporal “father-like” protector the altruistic good of all, even the weakest and the lower classes…the idea of the State as reflective of Higher Reason or Logos, whose legitimacy is based on some bare variety of Moral Goodness or Noblesse Oblige…was dead, nonexistent.
Inhering within the Church as the Supreme Intellective Leader of the Ordo of Christendom is the right to direct the “secular arm”, the knightly-administrative Station or Class, and to direct it along morally sound lines and educate it internally for the sake of good; and also invoke it for Spiritual or purely ecclesiastical reasons implicitly (but only occasionally and rarely is this virtual right of indirect coercion put into practice). In any case, when the “secular arm”, i.e. the the governing authorities,have become non-functioning and power exists merely as sadistic libido dominandi and the common good is totally ravaged with impunity, the Church then has the exceptional yet metaphysically undeniable right to assume the Temporal Authority itself as well; and rather than being a destructive element in Western history, Papal Headship preserved the West from its own internal self-dissolution in anarchy, provided as much civilized order and humanistic charity to all as could be given in the circumstances, and heroically resisted (and eventually tamed) the Nordic-Germanic “law of the Berserk”–that is, primitive, ugly, barbarian violence ruling “by grace of” corpse-mounds and mountains of innocently destroyed souls, Tyranny of Terrorist Blood-Reign as the Ape of true Authority, as the Devil is the Ape of God.
No Catholics need guilt-trips here, or need to feel depressively apologetic! Feel proud when accused of Papalism and Papalo-Caesarism, or Caesaro-Papalism, whatever it is…
Catholicism has only acted as an Agent against Chaos, historically… Temporal Power can never exist in schizophrenic isolation from Spiritual-Intellective Power–a Cosmic Metaphysical Law unassailable and irrepressible… The supreme coercive material power does belong to the Church as a virtually reserved moral right, intrinsic to the nature of human social organization… Each organic part of society needs the other, for the holistic greater good of all and social organicity… The Head of the body is the Head, and can never change its essence…
The Authority informally transferred to Papal Headship, preservative of the the Western Christian Ordo, was later humbly given back to the Temporal power when it “straightened itself up” and re-normalized morally, and the Carolingian Temporal Power, whose legitimacy and right-to-rule was directly based on its self-acknowledged Moral Submission to the uplifting and civilizing ethical system of the pontifical Church, FREELY chose to let a part of the earthly kingdom continue remaining in Papal hands as a type of "gift–the Papal States. The Papacy had an imprescriptable, acquired right over these lands…and later in history they were only usurped by the “arbitration” of the overreaching sword of the modern subversive State-Idea and its mercenaries–not any real justice.