I have to admit I only skimmed the paper, can you explain to me what “bullet” I ought to bite? It seems like a neutral proposition to say, what if we replace “us” with beings of greater well being.
My best guess is that our intuition for self-preservation and our intuition that killing sentient beings is bad most of the time should make me feel like that it would be a horrible idea? I’d rather throw the intuitions out than the framework, so to me this seems like an easy question. But maybe you have other arguments that make me not want to replace us.
Wouldn’t that be part of improving global health and/or wellbeing? To me this would be one meta level below the general cause areas.