That does not make sense about the species-ist part because damage or loss to one particular species has all sorts of context-specific ripple effects to everyth

That does not make sense about the species-ist part because damage or loss to one particular species has all sorts of context-specific ripple effects to everything else. One would need to assess what if any damage the decrease or extinction of a particular species would cause to the ecology as a whole and the other life forms in it, humans included.