> we are almost certainly speaking from completely different ontological perspectives
Do you consider me ontologically evil? Am I, as some people on the internet often refer to those with my sense of mortality, “a demon wearing human flash”?
> therefore we have little to learn from arguing with each other
In a way I agree but at the same time I can't help but think exploring the axioms underlying moral foundations is important. Either to come to a shared set as a society or to construct a societal machanism that will allow people with a contradictory sense of morality to co-exist. To be honest, reaching a shared set of moral axioms seems to be a lost cause to me. But, perhaps the co-existance mechanism is still possible.
If that's the first thing you think of when you see the word "ontological," I suggest you read some more philosophy before pondering moral axioms.
https://slatestarcodex.com/2014/09/30/i-can-tolerate-anythin...