Maybelline is facing calls for a boycott after a sponsorship with the transgender social-media influencer Dylan Mulvaney, who posted a short video last month of herself applying the brand's cosmetics and "getting glam." The pushback comes as another major brand, Anheuser-Busch's Bud Light, is grappling with a boycott of its beer due to a similar partnership with Mulvaney. The uproar comes as conservative lawmakers in some U.S. states pass laws that restrict the rights of transgender people, such as a new measure in North Dakota that restricts transgender health care in the state. Brands both big and small often partner...