Interesting perspective but I am skeptical. You suggest that evolution might "might lead us in a far more harmonious, successful direction" than culture.

I dunno.

All evolution cares about is gene replication. That's it. It doesn't care about human flourishing, or morality, or any of the cultural values we hold dear.

I believe that we can hold ourselves to a higher standard given to us through our own rationality and self-consciousness. We can set our own narratives independently of the pressures for gene replication. That's what makes us special.