"AFAIK they're consistent throughout time and space as far as history goes[0], and form a common base from which more complex morality stems."

Not even close! Universalized morality (e.g., "stealing is wrong") is a product of the last couple thousand years, and it's only present in some modern humans. It is the foundation of WEIRD (Western, Educated, Industrialized, Rich, Democratic) psychology.

If you're curious about what other kinds of human experience can be like, I recommend checking out some ethnographies. Here's a summary of one: https://peacefulsocieties.uncg.edu/wp-content/uploads/2015/1...