The article analyzes the postmodern attacks on the classical and non-classical philosophers’ attitudes to social totality. Besides, the post-classical socio-philosophical discourse is caused by powerful civilizational movements, which conditioned the crisis of traditional systemicity, classical spiritual orientations, reductionist discovery of action in metaphysical activity. The picture of modern society is various, multifaceted, diverse, individualized by the streams of autonomous processes and human wills. The main attributes of heterogeneous space are differences and singularity, which eliminate the single foundations of social existence and constitute the heterological concept of the post-classical social paradigm, legitimizing the principle of indefinite socialization. We refer to postmodern theories as such theories. In the epoch of postmodernism, there was a situation of complete distrust of metanarrative constructions. In the current “postmodern state” J. Derrida proposed the idea of a total deconstruction of classical intentions, affirming the postmodern concept. The main markers of postmodernism are decentralization, anti-fundamentalism, the lack of a single pattern, the rejec- tion of metanarratives, as well as anti-melioration. They were prepared by the critical views of modernist philosophers toward classical philosophy (K. Marx, F. Nietzsche, Z. Freud), the sensational achievements in the field of natural science of the XIX and XX centuries, as well as the diversity of social practice in the twentieth century. The natural and social world has become different, requiring the latest cognitive thinking, a fundamentally new epistemology. As a result, postmodernism rejects the despotism of logocentrism, embedded in cosmic totality