On Facebook and other forms of social media, therefore, you signal your so-called virtue, telling everyone how tolerant, open and compassionate you are, and wait for likes to accumulate. (Leave aside that telling people you’re virtuous isn’t a virtue, it’s self-promotion. Virtue signalling is not virtue. Virtue signalling is, quite possibly, our commonest vice.) Intolerance of others’ views (no matter how ignorant or incoherent they may be) is not simply wrong; in a world where there is no right or wrong, it is worse: it is a sign you are embarrassingly unsophisticated or, possibly, dangerous.
