This sounds correct, but of course we also know both with humans and other animals that there are some net advantages to various herding and familial instincts even if those don’t by necessity favor those most closely related (although on average, the locals are more closely related to you than those not in your tribe/troop/herd/pride etc.). There is of course competition both within and between species; I think this is all that the original post is hung up on.
This sounds correct, but of course we also know both with humans and other animals that there are some net advantages to various herding and familial instincts even if those don’t by necessity favor those most closely related (although on average, the locals are more closely related to you than those not in your tribe/troop/herd/pride etc.). There is of course competition both within and between species; I think this is all that the original post is hung up on.