Materiality and Subject in Marxism, (Post-)Structuralism, and Material Semiotics

In recent decades, what is known as 'the subject' has been problematized by various old and new materialisms and today appears as decentered in and by language, split by the unconscious, deformed by social forces, governed by ideology and is either seen to have succumbed to the postmodern condition or to never have existed in the first place. Every materialist theory of the subject depends on a conception of materiality, which can delineate the character of what the material reality, which de-ce