TOKYO—The Tokyo 2020 Olympics and Paralympics, which are supposed to celebrate the world’s diversity and harmony, have been plagued with scandals—and COVID-19. They’ve come to symbolize xenophobia, discrimination, and cruelty—and Friday night, we can add homophobia and historical revisionism to the mix. It’s no surprise that Japan’s pacifist Emperor Naruhito and his wife, Masako, the empress, want