If you “find it hard to imagine an ultimate ethical theory that isn’t based on some form of utilitarianism” then you probably don’t have a very strong understanding of normative ethics.
FWIW I’d like to take this opportunity to advertise my list of recommended readings about non-utilitarian normative ethics, which some utilitarians may find educational.
Maybe someone can write a similar list for metaethics.
FWIW I’d like to take this opportunity to advertise my list of recommended readings about non-utilitarian normative ethics, which some utilitarians may find educational.
Maybe someone can write a similar list for metaethics.