This week Tim Farron, the leader of the British Liberal Democrats, resigned because he found his Christian faith incompatible with leading his party. Apparently, the problem was that while he agreed with the Liberal Democratic position that homosexual relations and same-sex marriage should be legal, he also believed, like many Christians, that homosexual relations were wrong. Many party colleagues found the combination of these two positions intolerable.
But this kind of combination traditionally defined the essence of liberalism, supposedly the guiding light of Farron’s party. Liberalism was exactly the view that government had no business regulating actions or beliefs unless they could be demonstrated to cause concrete harms to a third party. As a result, liberals have supported legalizing all sorts of matters that they may have believed immoral or imprudent. In my view, the best test for a liberal is the willingness to tolerate behavior of which he morally disapproves.