> I do think genetics are modified by culture in the long term.

For example, "self-domestication" by executing or ostracizing individuals that don’t fit into the culture.

You don't really need to go that far. Alimentation changes are enough to force genetic change. Or if you want to go the darwinist/anthropologic way: "https://www.scimex.org/newsfeed/yes-homo-mammals-keep-evolvi..."