Ya had me until this.That's got nothing due to genetics, it's a direct affect of identity politics promoting the value of the 'group' over the value of 'self' in order to get votes from the disenfranchised illiterati and to herd them into fenced in corrals where they'll be easier to control.
If anything promotes the herd at the expense of the "Self" it's embracing traditional mores. Else there wouldn't be so much societal pressure to fit into neat little boxes or to play neat little roles.
Hell, it's in the name. Identity Politics. When you're raised being told your "self" is synonymous with certain roles, stereotypes or functions, and these notions are rejected, you get "identity politics".