Andromeda the Galaxy-Killer?
So Andromeda is guilty of galaxy-cide, by consuming smaller neighboring galaxies, and now it's coming for us. Isn't the Milky Way equally culpable? It was only a year or so ago that I was reading about how the Milky Way had hoovered up five or seven smaller galaxies.
In any event, we personally and humanity in general will be long gone before that happens.