Another way of looking at this is dunbar’s number. I don’t choose not to care about everyone equally. I can’t care about everyone equally - and neither can anyone else. The people that do purport to care about everyone equally are necessarily mislabeling a different behavior. For some it is pathological altruism, for others it is a twisted form of nihilism or narcissism. But it isn’t genuine love or investment - not on a universal level - because people are not mentally capable of such a thing.