Abstract If the paradigm of secularization as replacement was falsified by the permanent vitality of the religious dimension on the world horizon and in the public sphere, the universalization of the paradigm of secularization as differentiation, on the contrary, turns out to be an essential guarantee of the maintenance and promotion of the rule of law and human rights. From an alternative perspective to both secularism and fundamentalism, public theology today is therefore called upon to reconstruct and argumentatively justify the function of religious freedom as a basic principle of democratic society, within the framework of cognitive and normative disjunction between religion and citizenship which rules modernity. It is urgent to theologically demystify the regressive manipulation of this principle, as a vector of a democratically disruptive tribal pluralism, in contradiction with its nature as a catalyst for an integrative pluralism essential for social cohesion and the common good.