Modern culture is shit because human societies have gone through the same process which forests and other natural ecosystems had gone through – replacement of diversity with clones and engineered species.
Premodern culture – all of it, from prehistoric times to right before the enlightenment – is human at the core, but extremely varied and specific to localized groups which internalized their own specific history and narrative arc.
Modern humans still live in groups, like their ancestors, and because they feel the need to, but these groups are fabricated as a sort of fake hologram of what a group should be. The differences that matter between humans are going away and culture is the part where this is first visible.
Not even generations have demarcation lines anymore. The young waste away in different corners of the internet doing exactly what the old do. Using a different platform does not make you avant-garde or a rebel.
Modern humans, just like the aligned trees in a human made “green wall” – a simulacrum of a forest – all come from one favored species – ethically and socially speaking. It’s not wether superhero movies are actually movies – it’s about that between superhero movies made with big budget Hollywood teams and small European aimed at film award festivals films there is little difference in terms of expressivity, assumptions, lived reality, and general cultural background.
Even the powers at war now have little that they differ on. The differences are made up fodder for propaganda. In truth the war is fought using the same set of emojis.