We in the West are living in a world that more and more lacks any shared moral goalposts. There is no consensus at all on a range of issues from the desirability of quotas based on group identity, to abortion, to who can marry, to the worth of inculcating patriotism in school, to believing in the very notion of merit, to religion, to whether life in today’s West is the best that’s ever been on offer or a repository of the fruits of past evil-doing, all the way over to matters having to do with the need for strong borders...