There are indeed no good answers, but that doesn't imply that the premise is wrong - it can just as well be that we assume that notions like "identity" are fund

There are indeed no good answers, but that doesn't imply that the premise is wrong - it can just as well be that we assume that notions like "identity" are fundamental when it is in fact a property that we ascribe based on factors not directly related to consciousness (i.e. things like bodies), simply because our day-to-day experience always includes those factors and places them front and center. Even with humans there are cases where this breaks down to some extent. E.g. in the case of multiple personality disorder, how many distinct streams of consciousness are there, and should we consider them distinct identities?