[M]orality concerns `proper' resolution of interpersonal conflict and amelioration of the human predicament. ... [M]orality has a minimal aim of preventing a state of chaos ..."

This supports (by supporting premise 1 below) an argument against subjectivism:

1. If subjectivism about morality is correct, then morality cannot fulfil its purpose.
2. Morality can fulfil its purpose.
3.Therefore, subjectivism about morality is not correct.