I’m not really sure we have a large enough corpus of (known) societies, but even ignoring that, were any pre-Middle Ages or non-Western European societies nearly as tight-lipped about sex? And just how tight-lipped actually was medieval Europe, when even Sleeping Beauty was awoken by being fucked? Finally, to which degree is stability of the social order desirable? Medieval Europe, sakoku Japan and zastoj USSR were all (meta)stable to some degree, but they were also hellholes of varying depth.
I don’t actually think the answers to these questions disprove your statement, because I have a painful lack of knowledge as to what those answers actually are. But I do feel that those answers need to be given before an argument such as yours can make sense.
(Granted, a trait that promotes societal stability can become common even if stability isn’t actually good, so the last question is not as important as the others. A dystopian equilibrium is still an equilibrium.)
I don’t actually think the answers to these questions disprove your statement, because I have a painful lack of knowledge as to what those answers actually are. But I do feel that those answers need to be given before an argument such as yours can make sense.
(Granted, a trait that promotes societal stability can become common even if stability isn’t actually good, so the last question is not as important as the others. A dystopian equilibrium is still an equilibrium.)