afwef

> For example, the Commandment "Thou shalt not kill" is anything but an axiom. All but the most unreasonable followers will be able to produce some circumstance where killing is moral. That's not an axiom, that's a guideline.

So can you give an example of an actual "moral axiom"

> Both of these things are also highly likely to cause you suffering because most people who are not sociopaths do not enjoy the direct experience of causing someone suffering and suffer guilt for bad actions.

Why would someone having sex with your wife cause them suffering?

By axiom OP meant "assumed truth on which we base all of our other deductions" not "a self-evident truth"

Only partly, there is still a large degree of arbitrariness based on the social environment within the biologically constrained bounds

That question is not resolvable in any meaningful way. You can justify anything with a rationalization

You're assuming a logical system, but these "axioms" aren't like math, trying to find a contradiction is itself a moral judgement.

So you're just arguing in circles. None of the grounding in reality is actually connected to moral judgements in the sense of proving them wrong or right.