Morality and the distinction drawn between objective and subjective knowledge. Pelosi the wall is immoral

Morality has fallen victim to the distinction drawn between objective and subjective knowledge.

 Objective knowledge consists of empirically verifiable ‘facts’ about material phenomena, whereas subjective knowledge consists of all that remains, including such things as evaluative and normative statements about the world. 

On this view, a statement such as ‘I am sitting at a desk as I write this essay’ is of a different category to the statement ‘abortion is morally wrong’. The first statement is amenable to empirical verification, whereas the latter is an expression of a personal, subjective belief.

Morality is presented as thereby lacking any objective, public basis. The espousal of specific moral beliefs  Pelosi  - the wall is immoral - is thus understood as an instrument for the assertion of one’s own, partial interests: morality has been subsumed by instrumental reasoning 0f damaging Trump.