Thanks sorry to only be getting to this now. It's a great question - 'appropriately expanding the moral community' is a broader theme of ethics in many traditions, and my book talked about this as one of the core moral practices that can cross cultural lines. But: 1/n

As shown in debates about including robots or animals in the moral community, there is deep disagreement about how *far* to extend it or whether that is really the issue, when most humans who already stand within the 'moral circle' are still routinely denied *equal* standing 2/n

there's also the question of whether this language assumes that those doing the 'expanding' of the circle (i.e., already privileged folks) have a special right or even *any* right to set its boundaries. 3/n