Many people seem to think that the results of the British general election—a gain of 24 seats for the Tories, giving them a majority—herald a major win for conservatism. They don’t. They herald a major win for the Conservative Party, but just because it calls itself the Conservative Party doesn’t mean it does conservative things. Actually, the full official name of that party is the “Conservative and Unionist Party,” and last night was not a win for unionism either. The Scottish National Party, once a marginal outfit known outside Scotland only because Sean Connery supported it, picked up 50 seats...