UFC fighter Julian Erosa has sparked a backlash after admitting he wants to fight transgender swimmer Lia Thomas. Thomas, who is nine years Erosa’s junior, has caused controversy by competing – and winning – against biological women in the United States. Thomas initially swam on the men’s team at the University of Pennsylvania but, back in 2019, started to transition. By 2021 she had met the NCAA hormone therapy requirements to swim on the women’s team and, the following year, she became the first openly transgender athletes to win an NCAA Division I national championship in any sport after se…