I agree with the OP. The case of Caster Semenya, from Wikipedia:

"On 16 July, she set a new national record for 800 metres of 1:55:33.[68][citation needed] On 20 August, she won the gold medal in the women's 800 metres at the Rio Olympics with a time of 1:55.28.[69] Immediately after the race Lynsey Sharp, finishing sixth, broke in tears on the rule change saying “Everyone can see it’s two separate races so there’s nothing I can do,”[70] while fifth-placed Joanna Jóźwik reportedly claimed that she was the "first European" and "second white" to finish the race.[71][72]

Some commentators expressed concern about Semenya's testosterone levels, following her win. Eric Vilain, a medical geneticist, said in an interview, “if we push this argument, anyone declaring a female gender can compete as a woman... We’re moving toward one big competition, and the very predictable result of that competition is that there will be no women winners.”[73] Other commentators, such as bioethicist Katrina Karkazis, point to statements by losing competitors as evidence of discriminatory treatment.[72]"