Let me try once more. In the op I argue from 3 perspectives that absolute morality is a delusion. Then I argue that without god as a perfect model our moral decisions do not reduce to subjective opinions.
morality is nothing more than how we worry about the way our actions affect the well being of conscious beings. As such there are many objective facts on which to base our decisions.
Similarly there is no such thing as an absolute perfect model of health. Exactly how strong fast flexible is a perfect 58 year old man exactly? What is the absolute standard for his perfect pulse blood pressure BMI blood count etc etc? The absence of an absolute standard does not stymie doctors from making objective judgements based on objective facts.
It is objectively true that treating women as possessions and sex slaves of men does not promote the well being of the greatest number of people. We do not need an absolute model of perfect morality to make that judgement. We can base it on objective facts.