Dallas Goldtooth, known for his role in the hit FX television series, Reservation Dogs, slowly swivels in his chair to face the camera in a recent TikTok video. As he looks at the audience, a voice-over announcer says, “When people refuse to get vaccinated but also talk about protecting future generations, that’s stupid.” The Dakota and Navajo actor joins other influencers — people who have earned the community’s trust — in a two-phase public outreach effort by nonprofit organizations IllumiNati...