[mathieuh]

It’s just taking a materialist view of the world. E.g., a Marxist would argue our culture is shaped by the prevailing mode of production. Anarchists would also say that any hierarchical structures are imaginary. It’s not really nihilistic, it’s just a different way of seeing how we got to where we are in humans’ cultural evolution.

Instead of thinking that culture just popped out of our heads, it’s thinking that culture is mostly if not entirely tied to events happening in the real world.