America welcomed a new president last week. As predicted, the theme of Joe Biden’s inaugural address was unity. That’s not surprising after five years of toxic political discourse, in which families splintered and relationships were broken off by the mere admission that somebody supported Donald Trump. But just talking about unity isn’t enough. President Biden needs actions to match those lofty words, and he needs to make sure others in his administration and party do the same. He can start by calling for an end to the lockdowns that governments have ordered since last March in response to COVID-19.As I...