This strikes me as incredibly unlikely from an evolutionary psychology perspective. Or even from a perspective that acknowledges the relative complexity between whatever system you are envisioning and the simple (mostly) monogamous couple.

Graeber's dawn of humanity have taught me humans have tried a lot of different social setups in the past for power and cooperation structures.

Many animals have evolved in different direction for educational, emotional and sexual structures.

I don't see any impossibility here.

Only the believe the future will like the present, which is obviously not true.