When “Batman and Robin” came out in 1997, it seemed like everyone was focused on Alicia Silverstone’s body. The actor who played Batgirl was greeted with misogynistic and body-shaming echoes of “Fatgirl” by so-called fans of the franchise. In a particularly gross quip, late director Joel Schumacher laughed about how Batgirl’s suit came “with nipples. We’re an equal opportunity movie.” When it was announced last summer that an actor of color was going to play Batgirl in a live action film, racist trolls came for star Leslie Grace in the same way they came for Halle Bailey after she was...