There's no objective morality, but that's not the real point. It's not the point that morality has to somehow be a stone, or something that can be touched. 

The options that are available to choose are determined to a point, and this is the objective aspect of morality, ethics, goodness, fairness, justice. 

The subjective aspect can still remain subjective, but that doesn't mean goodness is relative.....at all. The measure of a man is a man.

There is one ethical principle, either you are preserving life generally, or you aren't. Preserving life in your ends and your means determines whether you are good or evil.

There are two kinds of people, killers, and everybody else.

Pure justice emerges from symmetry applied human life, and human beings as ends in themselves.

Basic justice is based on everything we as humans share that is the same. It extends to nature also, but, if we can't keep it straight amongst ourselves, of course we'll never have the traction to extend it to the larger context we are a part of.