What an impressive essay...almost a seminar on Jungian psychology/philosophy. I think it's fascinating that when Jung wrote we knew little about epigenetics. And yet, in a way, epigenetics can be viewed as a kind of validation of collective unconsciousness. I've never accepted this Jungian concept, but if each generation influences subsequent generations through experience and gene expression, in a way, this becomes a sort of collective phenomenon. I know I'm playing loose with Yung, and with epigenetics, but this is an interesting way of looking at heritability that goes beyond the double helix.
Thank you for this quite expansive and interesting discussion.