Metaphysics involves installing hierarchies and orders of subordination

Metaphysics involves installing hierarchies and orders of subordination in the various dualisms good bad that it encounters 

Moreover, metaphysical thought prioritises presence and purity at the expense of the contingent and the complicated, which are considered to be merely aberrations that are not important for philosophical analysis.

Basically then, metaphysical thought always privileges one side of an opposition, and ignores or marginalises the alternative term of that opposition.