The philosophical_realists' clinging desperately to an illusory absolutely mind-independent reality lead the philosophical realists to insist there are no mind-independent moral facts because moral elements [whatever is related to morality] can never be absolutely mind-independent.
Philosohical_realists [anti-Moral_Realists] moral elements are restricted to rightness and wrongness and elements which are highly subjective [related to human conditions].
As such what is Morality can NEVER be Objective nor of Realism.
Philosophical_Realists' arrogance in rejecting Morality as Objective is based on their ignorance of their grounding on an evolutionary default which is illusory.
They are ignorant -on their basis as realists - they are expressing their knowledge as 'children' or non-human animals.
As such, they do not have any credibility to denounce Moral Objectivity or Moral Realism [proper] based on such 'childish' grounds.
Here are where Philosophical Realist are directed to think like 'Children': [mine]
[Children are Realists]
It hardly needs be added that perceptual representation as of bodies does not constitutively require representation of mind-independence or of a seems/is distinction.
Human children have perceptions as of bodies before they have any representation of mind-independence as such.
Few if any non-human animals represent mind or mind-independence—ever.
Bodies are mind-independent, of course.
We come to understand this point once we acquire the concepts needed to raise the issue.
Perceiving and conceiving bodies as such does not require a capacity to understand the point.
Children’s representations are realist in this very basic sense: they represent a mind-independent reality without engaging in or presupposing any reference to mind.
Children and non-human animals are realists not because they represent bodies as mind-independent, but because they cannot help but ignore idealism.
We as philosophers [philosophical realists] should emulate the children.
Origins of Objectivity: pg 549
Tyler Burge
On the other hand, ANTI-Philosophical_Realists recognized there are objective moral facts as conditioned within a human-based moral FSK based on a deeper, wider knowledge base.
What is needed for philosophical_realists to understand the broader, deeper and more realistic aspects of reality and thus the existence objective moral facts is the "deep learning" [& other modern methods of processing knowledge, encoding, etc.] of AI which human already had been doing naturally.
There is a ton of research on this subject out there in the internet.
Views? Discuss?