Semenya, an Olympic gold medalist twice in the 800-meter run, saw her career cut short when World Athletics determined her to be ineligible to run in women's events, despite being assigned female from birth.
"What it's actually going to do is create a whole host of problems for cis women," they said. "Predominantly, cis women of color, if we're going to be honest - people that aren't feminine enough or don't look a certain way or are too tall, too strong, too fast."