Because their souls moving on, each dead body can be resurrected and birthed as a new being. Or a dead being can take over the body as theirs, but then the new being who is birthed by a dead body can not be birthed killing a new being.

Potential 100% calculable beings could not be birthed if Earth decides to not too, so who defends and protects those beings? And when does The Milky Way Galaxy Advent Guard step in to protect dead bodies that can rebirthed from the beings who died and those two beings being different but not the same.