I think I know a little of how he feels. I’ve been rooting for the Yokohama professional baseball team—originally the Taiyo Whales, now the DeNA Baystars—since the team moved to Yokohama, as I went to high school there. They have pretty much stunk the whole time.
My son’s experiences of Japan were mostly in Kansai, Shikoku, and Kanazawa, so he follows the (Osaka) Hanshin Tigers—and back in the ‘90s when he was growing up, the team would show up in nearby Lakeland, FL, to spring train with the Detroit Tigers, so he got to meet a few of their players back then. Hanshin has its ups and downs, while the Baystars pretty much have downs.