John argues that a particular culture’s distinctive view of reality simply exists and believes that there is no way to meaningfully address the origin of cultural differences. john seems to subscribe to which philosophical tradition?

John seems to subscribe Deconstructionism.

Deconstructionism is a theory by French philosopher, Jacques Derrida.  It is a philosophical and literary analysis that questions "oppositions". It dismantles traditions and traditional modes of thought.  In Philosophy, Deconstructionism is an analysis that makes an opposition a construction of a text, exploring the tensions and contradictions between hierarchical ordering or pair of terms (eg. nature and culture, speech and writing)