> To pick the most extreme example: most people don't need a law, or even a moral code, to not kill other people.
How it may be a "nature" if it is artificial? Some cultures routinely eat other people, we do not, how it can be a human nature, if different people coalesce at different "natures"?
There is a famous debate "nature vs. nurture", and I believe it is unwise to call something to be a nature thing, if it is really a nurture thing. It just bring a lot of confusion.
> Everyone's human nature is, on average, reasonably aligned, and laws tend to reflect that average.
Eww... averages... I believe it is impossible to have a meaningful definition of an "average person". There was a story of average pilot[1], and later of a search for average american woman (can't find a link). You cannot have meaningful averages in highly multi-dimensional spaces.
But if we rephrase it referring to a social norms, it could make sense, but then comes a question what is the difference between human nature and social norms?
[1] https://worldwarwings.com/no-such-thing-as-an-average-pilot-...