Rowling blasts Oliver for saying there’s no evidence biological male trans athletes have an advantage when competing against biological females

John Oliver did a monologue on Friday about people who opposed biological males who identify as females participating in women’s sports.

Oliver claimed there was no evidence biological male trans athletes have an advantage when competing against biological females.

Rowling pointed to a UN report from last month , which found that more than 600 biological females did not medal in more than 400 competitions in 29 different sports due to trans-inclusion standards.