Yesterday, I sat down in my local theater to watch Leonardo DiCaprio’s new film, One Battle After Another. DiCaprio has long been known as a social-justice advocate, and over the past decade his film choices increasingly carry political undertones. My first encounter with this was during The Revenant, when he used that film’s publicity to highlight climate change. His latest is no different. In One Battle After Another, the narrative centers on immigration struggles, portraying antagonists as...