https://en.wikipedia.org/wiki/Critical_theory
"Critical theory is the reflective assessment and critique of society and culture in order to reveal and challenge power structures. With origins in sociology as well as in literary criticism, it argues that social problems are influenced and created more by societal structures and cultural assumptions than by individual and psychological factors. Maintaining that ideology is the principal obstacle to human liberation,[1] critical theory was established as a school of thought primarily by the Frankfurt School theoreticians Herbert Marcuse, Theodor Adorno, Walter Benjamin, Erich Fromm, and Max Horkheimer. The latter sociologist described a theory as critical insofar as it seeks "to liberate human beings from the circumstances that enslave them."[2]
In sociology and political philosophy, the term Critical Theory describes the Western-Marxist philosophy of the Frankfurt School, which was developed in Germany in the 1930s and draws on the ideas of Karl Marx and Sigmund Freud. Though a "critical theory" or a "critical social theory" may have similar elements of thought, the capitalization of Critical Theory as if it were a proper noun particularly stresses the intellectual lineage specific to the Frankfurt School"